SystemActType = dict(
    affirm='affirm',
    bye='bye',
    canthear='canthear',
    confirm_domain='confirm-domain',
    negate='negate',
    repeat='repeat',
    reqmore='reqmore',
    welcomemsg='welcomemsg',
    canthelp='canthelp',
    canthelp_missing_slot_value='canthelp.missing_slot_value',
    expl_conf='expl-conf',
    impl_conf='inform-conf',
    inform='infomr',
    offer='offer',
    request='request',
    select='select'
)