user_turns: <SILENCE> vietnamese food in any area yes <SILENCE> yes the phone numeber the post code 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 ? You are looking for a restaurant is that right? api_call vietnamese R_location R_price thanh_binh serves vietnamese food . Can I help you with anything else? The phone number of thanh_binh is thanh_binh_phone The post code of thanh_binh is thanh_binh_post_code  you are welcome