user_turns: <SILENCE> i want to find a rest a vietnamese <SILENCE> vietnamese food uh vietnamese food next vietnamese food vietnamese food phone number post code okay 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? api_call vietnamese R_location R_price frankie_and_bennys is a great restaurant thanh_binh serves vietnamese food . Can I help you with anything else? thanh_binh serves vietnamese food . Can I help you with anything else? curry_king serves indian food . thanh_binh serves vietnamese food . The phone number of thanh_binh is thanh_binh_phone The post code of thanh_binh is thanh_binh_post_code  you are welcome