user_turns: <SILENCE> i want a restaurant in any area that serves traditional food alright i want a restaurant in any i want a restaurant in any area that serves vietnamese food yes <SILENCE> the address and 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 ? There are restaurants in all parts of town . What type of food do you want? I'm sorry but there is no restaurant serving traditional food Could you please repeat that? You are looking for a vietnamese restaurant right? api_call vietnamese R_location R_price thanh_binh serves vietnamese food The phone number of thanh_binh is thanh_binh_phone  you are welcome