user_turns: <SILENCE> id like a restaurant in any area that serves japanese food <SILENCE> phone number what is the 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 ? api_call japanese R_location R_price wagamama is a nice restaurant in the centre of town serving japanese food Can I help you with anything else? The phone number of wagamama is wagamama_phone  you are welcome