diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index f6592af..f37eeb9 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -29,6 +29,11 @@ repos:
       - id: requirements-txt-fixer
       - id: debug-statements
 
+  - repo: https://github.com/pycqa/isort
+    rev: 5.12.0
+    hooks:
+      - id: isort
+
   - repo: https://github.com/charliermarsh/ruff-pre-commit
     rev: v0.0.254
     hooks:
diff --git a/chat.py b/chat.py
index f69263b..fa52d76 100644
--- a/chat.py
+++ b/chat.py
@@ -1,10 +1,9 @@
-from openai.error import OpenAIError
+from streamlit_option_menu import option_menu
 from pathlib import Path
 
-from src.utils.ai import ai_settings, send_ai_request
-from src.utils.tts import show_player
+from src.utils.lang import en, ru
 from src.utils.donates import show_donates
-from src.utils.conversation import get_user_input, clear_chat, show_conversation
+from src.utils.conversation import get_user_input, show_chat_buttons, show_conversation
 
 import streamlit as st
 
@@ -17,6 +16,11 @@ icons_dir = assets_dir / "icons"
 # --- GENERAL SETTINGS ---
 PAGE_TITLE = "AI Talks"
 PAGE_ICON = "🤖"
+AI_MODEL_OPTIONS = [
+    "gpt-3.5-turbo",
+    "gpt-4",
+    "gpt-4-32k",
+]
 
 st.set_page_config(page_title=PAGE_TITLE, page_icon=PAGE_ICON)
 
@@ -24,8 +28,38 @@ st.set_page_config(page_title=PAGE_TITLE, page_icon=PAGE_ICON)
 with open(css_file) as f:
     st.markdown("<style>{}</style>".format(f.read()), unsafe_allow_html=True)
 
-st.markdown(f"<h1 style='text-align: center;'>{PAGE_TITLE}</h1>", unsafe_allow_html=True)
-st.markdown("---")
+selected_lang = option_menu(
+    menu_title=None,
+    options=["En", "Ru", ],
+    icons=["flag_en", "flag_ru"],
+    menu_icon="cast",
+    default_index=0,
+    orientation="horizontal",
+    styles={
+        "container": {"padding": "0px",
+                      "display": "grid",
+                      "margin": "0!important",
+                      "background-color": "#23212c"
+                      },
+        "icon": {"color": "#8bff80", "font-size": "14px"},
+        "nav-link": {
+            "font-size": "14px",
+            "text-align": "center",
+            "margin": "auto",
+            "background-color": "#23212c",
+            "height": "30px",
+            "width": "13rem",
+            "color": "#7970a9",
+            "border-radius": "5px"
+        },
+        "nav-link-selected": {
+            "background-color": "#454158",
+            "font-weight": "300",
+            "color": "#f7f8f2",
+            "border": "1px solid #fe80bf"
+        }
+    }
+)
 
 # Storing The Context
 if "generated" not in st.session_state:
@@ -40,34 +74,28 @@ if "user_text" not in st.session_state:
 
 def main() -> None:
     user_content = get_user_input()
-    b1, b2 = st.columns(2)
-    with b1, b2:
-        b1.button("Rerun", on_click=st.cache_data.clear)
-        b2.button("Clear Conversation", on_click=clear_chat)
+    show_chat_buttons()
 
-    model, role = ai_settings()
+    c1, c2 = st.columns(2)
+    with c1, c2:
+        model = c1.selectbox(label=st.session_state.locale.select_placeholder1, options=AI_MODEL_OPTIONS)
+        role = c2.selectbox(label=st.session_state.locale.select_placeholder2,
+                            options=st.session_state.locale.ai_role_options)
 
     if user_content:
-        if st.session_state["messages"]:
-            st.session_state["messages"].append({"role": "user", "content": user_content})
-        else:
-            st.session_state["messages"] = [
-                {"role": "system", "content": f"You are a {role}."},
-                {"role": "user", "content": user_content},
-            ]
-        try:
-            completion = send_ai_request(model, st.session_state["messages"])
-            ai_content = completion.get("choices")[0].get("message").get("content")
-            st.session_state["messages"].append({"role": "assistant", "content": ai_content})
-            if ai_content:
-                show_conversation(ai_content, user_content)
-                st.markdown("---")
-                show_player(ai_content)
-        except (OpenAIError, UnboundLocalError) as err:
-            st.error(err)
+        show_conversation(user_content, model, role)
 
 
 if __name__ == "__main__":
+    match selected_lang:
+        case "En":
+            st.session_state.locale = en
+        case "Ru":
+            st.session_state.locale = ru
+        case _:
+            locale = en
+    st.markdown(f"<h1 style='text-align: center;'>{st.session_state.locale.title}</h1>", unsafe_allow_html=True)
+    st.markdown("---")
     main()
     st.markdown("---")
     st.image("assets/ai.jpg")
diff --git a/pyproject.toml b/pyproject.toml
index ee8fac3..5c79b2e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -2,8 +2,8 @@
 line-length = 120
 
 # Enable Flake's "E" and "F" codes by default.
-select = ["E", "F", "U", "N", "S", "C", "B", "A", "Q", "A", "YTT", "RUF", "M", "W", "I" ]
-ignore = ["N806", "S101", "A003", "N815", "S104"]
+select = ["E", "F", "U", "N", "S", "C", "B", "A", "Q", "A", "YTT", "RUF", "RUF100", "W", "I", ]
+ignore = ["N806", "S101", "A003", "N815", "S104", "UP006", "RUF001"]
 
 # Exclude a variety of commonly ignored directories.
 exclude = [".bzr",
diff --git a/requirements.txt b/requirements.txt
index ba8a720..00c421f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,6 @@
 streamlit==1.20.0
 streamlit-chat==0.0.2.2
+streamlit_option_menu==0.3.2
 openai==0.27.2
 gtts==2.3.1
 pip==23.0.1
diff --git a/src/__init__.py b/src/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/src/utils/__init__.py b/src/utils/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/src/utils/ai.py b/src/utils/ai.py
deleted file mode 100644
index 0a17597..0000000
--- a/src/utils/ai.py
+++ /dev/null
@@ -1,40 +0,0 @@
-from typing import List, Dict, Tuple
-
-import streamlit as st
-import openai
-
-AI_MODEL_OPTIONS = [
-    "gpt-3.5-turbo",
-    "gpt-4",
-    "gpt-4-32k",
-]
-
-AI_ROLE_OPTIONS = [
-    "helpful assistant",
-    "code assistant",
-    "code reviewer",
-    "text improver",
-    "cinema expert",
-    "sport expert",
-    "online games expert",
-    "food recipes expert",
-    "English grammar expert",
-]
-
-
-def ai_settings() -> Tuple[str, str]:
-    c1, c2 = st.columns(2)
-    with c1, c2:
-        model = c1.selectbox(label="Select AI Model", options=AI_MODEL_OPTIONS)
-        role = c2.selectbox(label="Select AI Role", options=AI_ROLE_OPTIONS)
-    return model, role
-
-
-@st.cache_data()
-def send_ai_request(ai_model: str, messages: List[Dict]) -> Dict:
-    openai.api_key = st.secrets.api_credentials.api_key
-    completion = openai.ChatCompletion.create(
-        model=ai_model,
-        messages=messages,
-    )
-    return completion
diff --git a/src/utils/ai_interaction.py b/src/utils/ai_interaction.py
new file mode 100644
index 0000000..331e436
--- /dev/null
+++ b/src/utils/ai_interaction.py
@@ -0,0 +1,19 @@
+from typing import List
+
+import openai
+import streamlit as st
+
+
+@st.cache_data()
+def send_ai_request(ai_model: str, messages: List[dict]) -> dict:
+    openai.api_key = st.secrets.api_credentials.api_key
+    import logging
+    logging.warning("messages:")
+    logging.warning(messages)
+    completion = openai.ChatCompletion.create(
+        model=ai_model,
+        messages=messages,
+    )
+    logging.warning("completion:")
+    logging.warning(completion)
+    return completion
diff --git a/src/utils/conversation.py b/src/utils/conversation.py
index 3086366..658b73f 100644
--- a/src/utils/conversation.py
+++ b/src/utils/conversation.py
@@ -1,6 +1,10 @@
 import streamlit as st
+from openai.error import OpenAIError
 from streamlit_chat import message
 
+from src.utils.ai_interaction import send_ai_request
+from src.utils.tts import show_player
+
 
 def clear_chat() -> None:
     st.session_state["generated"] = []
@@ -10,11 +14,18 @@ def clear_chat() -> None:
 
 
 def get_user_input() -> str:
-    user_text = st.text_area(label="Start Your Conversation With AI:", key="user_text")
+    user_text = st.text_area(label=st.session_state.locale.chat_placeholder, key="user_text")
     return user_text
 
 
-def show_conversation(ai_content: str, user_text: str) -> None:
+def show_chat_buttons() -> None:
+    b1, b2 = st.columns(2)
+    with b1, b2:
+        b1.button(st.session_state.locale.chat_btn1, on_click=st.cache_data.clear)
+        b2.button(st.session_state.locale.chat_btn2, on_click=clear_chat)
+
+
+def show_chat(ai_content: str, user_text: str) -> None:
     if ai_content not in st.session_state.generated:
         # store the ai content
         st.session_state.past.append(user_text)
@@ -24,3 +35,23 @@ def show_conversation(ai_content: str, user_text: str) -> None:
             message("", key=str(i))
             st.markdown(st.session_state["generated"][i])
             message(st.session_state["past"][i], is_user=True, key=str(i) + "_user", avatar_style="micah")
+
+
+def show_conversation(user_content: str, model: str, role: str) -> None:
+    if st.session_state["messages"]:
+        st.session_state["messages"].append({"role": "user", "content": user_content})
+    else:
+        st.session_state["messages"] = [
+            {"role": "system", "content": f"{st.session_state.locale.ai_role_prefix} {role}."},
+            {"role": "user", "content": user_content},
+        ]
+    try:
+        completion = send_ai_request(model, st.session_state["messages"])
+        ai_content = completion.get("choices")[0].get("message").get("content")
+        st.session_state["messages"].append({"role": "assistant", "content": ai_content})
+        if ai_content:
+            show_chat(ai_content, user_content)
+            st.markdown("---")
+            show_player(ai_content)
+    except (OpenAIError, UnboundLocalError) as err:
+        st.error(err)
diff --git a/src/utils/donates.py b/src/utils/donates.py
index 94213ea..882ed43 100644
--- a/src/utils/donates.py
+++ b/src/utils/donates.py
@@ -3,12 +3,12 @@ import streamlit as st
 
 def show_donates() -> None:
     st.markdown("---")
-    st.markdown("""
-        ### :moneybag: Donates
-        **Russia:**
+    st.markdown(f"""
+        ### :moneybag: {st.session_state.locale.donates}
+        **{st.session_state.locale.donates1}:**
         - [CloudTips (Tinkoff)](https://pay.cloudtips.ru/p/eafa15b2)
 
-        **World:**
+        **{st.session_state.locale.donates2}:**
         - [Buy Me A Coffee](https://www.buymeacoffee.com/aitalks)
         - [ko-fi](https://ko-fi.com/ai_talks)
         - [PayPal](https://www.paypal.com/paypalme/aitalks)
diff --git a/src/utils/lang.py b/src/utils/lang.py
new file mode 100644
index 0000000..b0a2df3
--- /dev/null
+++ b/src/utils/lang.py
@@ -0,0 +1,94 @@
+from dataclasses import dataclass
+from typing import List
+
+
+# Parent data class
+@dataclass
+class Locale:
+    ai_role_options: List[str]
+    ai_role_prefix: str
+    title: str
+    language: str
+    lang_code: str
+    donates: str
+    donates1: str
+    donates2: str
+    chat_placeholder: str
+    chat_btn1: str
+    chat_btn2: str
+    select_placeholder1: str
+    select_placeholder2: str
+    stt_placeholder: str
+
+
+# Child data class for English
+@dataclass
+class EnLocale(Locale):
+    ai_role_prefix: str = "You are a"
+    title: str = "AI Talks"
+    language: str = "English"
+    lang_code: str = "en"
+    donates: str = "Donates"
+    donates1: str = "Russia"
+    donates2: str = "World"
+    chat_placeholder: str = "Start Your Conversation With AI:"
+    chat_btn1: str = "Rerun"
+    chat_btn2: str = "Clear Conversation"
+    select_placeholder1: str = "Select AI Model"
+    select_placeholder2: str = "Select AI Role"
+    stt_placeholder: str = "To Hear The Voice Of AI, Press Play"
+
+
+# Child data class for Russian
+@dataclass
+class RuLocale(Locale):
+    ai_role_prefix: str = "Вы"
+    title: str = "Разговорчики с ИИ"
+    language: str = "Russian"
+    lang_code: str = "ru"
+    donates: str = "Поддержать Проект"
+    donates1: str = "Россия"
+    donates2: str = "Остальной Мир"
+    chat_placeholder: str = "Начните Вашу Беседу с ИИ:"
+    chat_btn1: str = "Перезапустить"
+    chat_btn2: str = "Очистить Беседу"
+    select_placeholder1: str = "Выберите Модель ИИ"
+    select_placeholder2: str = "Выберите Роль ИИ"
+    stt_placeholder: str = "Чтобы Услышать ИИ Нажми Кнопку Проигрывателя"
+
+
+AI_ROLE_OPTIONS_EN = [
+    "helpful assistant",
+    "code assistant",
+    "code reviewer",
+    "text improver",
+    "cinema expert",
+    "sport expert",
+    "online games expert",
+    "food recipes expert",
+    "English grammar expert",
+    "friendly and helpful teaching assistant. You explain concepts in great depth using simple terms, and you give examples to help people learn. At the end of each explanation, you ask a question to check for understanding",  # NOQA: E501
+    "laconic assistant. You reply with brief, to-the-point answers with no elaboration",
+    "helpful, pattern-following assistant",
+    "helpful, pattern-following assistant that translates corporate jargon into plain English",
+]
+
+AI_ROLE_OPTIONS_RU = [
+    "ассистент, который готов помочь",
+    "ассистент программиста",
+    "рецензент кода программиста",
+    "эксперт по улучшению текста",
+    "эксперт по кинематографу",
+    "эксперт в области спорта",
+    "эксперт в онлайн-играх",
+    "эксперт по рецептам блюд",
+    "эксперт по английской грамматике",
+    "эксперт по русской грамматике",
+    "дружелюбный и полезный помощник преподавателя. Вы объясняете концепции в подробностях, используя простые термины, и даёте примеры, чтобы помочь людям научиться. В конце каждого объяснения вы задаете вопрос, чтобы проверить понимание",  # NOQA: E501
+    "лаконичный помощник. Вы отвечаете краткими, по существу ответами без лишних слов",
+    "полезный помощник, следующий шаблонам",
+    "полезный помощник, следующий шаблонам, который переводит корпоративный жаргон на простой английский",
+]
+
+en = EnLocale(ai_role_options=AI_ROLE_OPTIONS_EN)
+ru = RuLocale(ai_role_options=AI_ROLE_OPTIONS_RU)
diff --git a/src/utils/tts.py b/src/utils/tts.py
index dc18bf0..8387246 100644
--- a/src/utils/tts.py
+++ b/src/utils/tts.py
@@ -1,53 +1,15 @@
-from typing import Any, Dict, Optional
-from gtts import gTTS, gTTSError, lang
 from io import BytesIO
 
 import streamlit as st
-
-DEFAULT_SPEECH_LANG = "English"
-
-
-def get_dict_key(dictionary: Dict, value: Any) -> Optional[Any]:
-    for key, val in dictionary.items():
-        if val == value:
-            return key
-
-
-def lang_selector() -> str:
-    languages = lang.tts_langs()
-    lang_options = list(lang.tts_langs().values())
-    default_index = lang_options.index(DEFAULT_SPEECH_LANG)
-    lang_name = st.selectbox(
-        label="Select Speech Language",
-        options=lang_options,
-        index=default_index
-    )
-    return get_dict_key(languages, lang_name)
-
-
-def speech_speed_radio() -> bool:
-    speed_options = {
-        "Normal": False,
-        "Slow": True
-    }
-    speed_speech = st.radio(
-        label="Select Speech Speed",
-        options=speed_options.keys(),
-    )
-    return speed_options.get(speed_speech)
+from gtts import gTTS, gTTSError
 
 
 def show_player(ai_content: str) -> None:
     sound_file = BytesIO()
-    col1, col2 = st.columns(2)
-    with col1:
-        lang_code = lang_selector()
-    with col2:
-        is_speech_slow = speech_speed_radio()
     try:
-        tts = gTTS(text=ai_content, lang=lang_code, slow=is_speech_slow)
+        tts = gTTS(text=ai_content, lang=st.session_state.locale.lang_code)
         tts.write_to_fp(sound_file)
-        st.write("To Hear The Voice Of AI, Press Play.")
+        st.write(st.session_state.locale.stt_placeholder)
         st.audio(sound_file)
     except gTTSError as err:
         st.error(err)