diff --git a/attributes.json b/attributes.json
index c92db86..969da03 100644
--- a/attributes.json
+++ b/attributes.json
@@ -1,6 +1,4 @@
 {
-    "address": null,
-    "order-complete": false,
     "dough": ["thick"],
     "drink": ["pepsi", "cola", "water"],
     "food": ["pizza"],
@@ -49,6 +47,5 @@
         "xl": {
             "price_multiplier": 1.4
         }
-    },
-    "order": []
+    }
 }
\ No newline at end of file
diff --git a/src/service/dialog_state_monitor.py b/src/service/dialog_state_monitor.py
index b5bea59..dfeb970 100644
--- a/src/service/dialog_state_monitor.py
+++ b/src/service/dialog_state_monitor.py
@@ -1,6 +1,5 @@
 from src.model.frame import Frame
 from convlab.dst.dst import DST
-import json
 import copy
 
 
@@ -10,19 +9,27 @@ def normalize(value):
 
 
 class DialogStateMonitor(DST):
-    def __init__(self, initial_state_file: str = '../attributes.json'):
-        DST.__init__(self)
-        with open(initial_state_file) as file:
-            self.__initial_state = json.load(file)
-        self.__memory = copy.deepcopy(self.__initial_state)
+    domain = 'restaurant'
 
-    # def __access_memory__(self, path: str) -> str | int | float | None:
-    #     result = self.state['memory']
-    #     for segment in path.split('.'):
-    #         if segment not in result:
-    #             return None
-    #         result = result[segment]
-    #     return result
+    def __init__(self):
+        DST.__init__(self)
+        self.__initial_state = dict(user_action=[],
+                                    system_action=[],
+                                    belief_state={
+                                        'order': [],
+                                        'address': {},
+                                        'order-complete': False,
+                                        'phone': {},
+                                        'delivery': {},
+                                        'payment': {},
+                                        'time': {},
+                                        'name': {},
+                                    },
+                                    booked={},
+                                    request_state={},
+                                    terminated=False,
+                                    history=[])
+        self.state = copy.deepcopy(self.__initial_state)
 
     def update(self, frame: Frame):
         if frame.source != 'user':
@@ -31,30 +38,27 @@ class DialogStateMonitor(DST):
             new_order = dict()
             for slot in frame.slots:
                 new_order[slot.name] = normalize(slot.value)
-            self.__memory['order'].append(new_order)
+            self.state['belief_state']['order'].append(new_order)
         elif frame.act == 'inform/address':
             for slot in frame.slots:
-                self.__memory['address'][slot.name] = normalize(slot.value)
+                self.state['belief_state']['address'][slot.name] = normalize(slot.value)
         elif frame.act == 'inform/phone':
             for slot in frame.slots:
-                self.__memory['phone'][slot.name] = normalize(slot.value)
+                self.state['belief_state']['phone'][slot.name] = normalize(slot.value)
         elif frame.act == 'inform/order-complete':
-            self.__memory['order-complete'] = True
+            self.state['belief_state']['order-complete'] = True
         elif frame.act == 'inform/delivery':
             for slot in frame.slots:
-                self.__memory['delivery'][slot.name] = normalize(slot.value)
+                self.state['belief_state']['delivery'][slot.name] = normalize(slot.value)
         elif frame.act == 'inform/payment':
             for slot in frame.slots:
-                self.__memory['payment'][slot.name] = normalize(slot.value)
+                self.state['belief_state']['payment'][slot.name] = normalize(slot.value)
         elif frame.act == 'inform/time':
             for slot in frame.slots:
-                self.__memory['time'][slot.name] = normalize(slot.value)
+                self.state['belief_state']['time'][slot.name] = normalize(slot.value)
         elif frame.act == 'inform/name':
             for slot in frame.slots:
-                self.__memory['name'][slot.name] = normalize(slot.value)
-
-    def read(self) -> dict:
-        return self.__memory
+                self.state['belief_state']['name'][slot.name] = normalize(slot.value)
 
     def reset(self):
-        self.__memory = copy.deepcopy(self.__initial_state)
+        self.state = copy.deepcopy(self.__initial_state)
diff --git a/src/test/dialog_state_monitor.py b/src/test/dialog_state_monitor.py
index a76c1ee..922b26e 100644
--- a/src/test/dialog_state_monitor.py
+++ b/src/test/dialog_state_monitor.py
@@ -4,17 +4,15 @@ from src.model.slot import Slot
 
 dst = DialogStateMonitor()
 
-assert dst.read()['pizza']['capri']['price'] == 25
-
-dst.update(Frame('user', 'inform/order', [Slot('B-pizza', 'margaritta'), Slot('B-sauce', 'ketchup')]))
-dst.update(Frame('user', 'inform/order', [Slot('B-pizza', 'carbonara')]))
+dst.update(Frame('user', 'inform/order', [Slot('pizza', 'margaritta'), Slot('sauce', 'ketchup')]))
+dst.update(Frame('user', 'inform/order', [Slot('pizza', 'carbonara')]))
 dst.update(Frame('user', 'inform/order-complete', []))
 
-assert dst.read()['order'][0]['B-pizza'] == 'margaritta'
-assert dst.read()['order'][0]['B-sauce'] == 'ketchup'
-assert dst.read()['order-complete'] == True
+assert dst.state['belief_state']['order'][0]['pizza'] == 'margaritta'
+assert dst.state['belief_state']['order'][0]['sauce'] == 'ketchup'
+assert dst.state['belief_state']['order-complete'] == True
 
 dst.reset()
 
-assert dst.read()['order'] == []
-assert dst.read()['order-complete'] == False
+assert dst.state['belief_state']['order'] == []
+assert dst.state['belief_state']['order-complete'] == False