user_turns: <SILENCE> indian wrong right <SILENCE> 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? You are looking for a vietnamese restaurant right? api_call indian R_location R_price thanh_binh is a nice place in the west of town serving tasty vietnamese food  you are welcome