user_turns: <SILENCE> west part of town hungarian food vietnamese food vietnamese food yes <SILENCE> phone number phone number thank you good bye
system_turns: Hello , welcome to the Cambridge restaurant system . You can ask for restaurants by area , price range or food type . How may I help you ? What kind of food would you like? I'm sorry but there is no restaurant serving hungarian food I'm sorry but there is no restaurant serving cantonese food You are looking for a vietnamese restaurant right? api_call vietnamese west R_price thanh_binh is a nice place in the west of town serving tasty vietnamese food thanh_binh is a great restaurant The phone number of thanh_binh is thanh_binh_phone thanh_binh is a great restaurant  you are welcome