user_turns: <SILENCE> christmas food west of town christmas food <SILENCE> what about british food <SILENCE> whats the address phone number price range whats the price range 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 christmas west R_price Sorry there is no christmas restaurant in the west of town api_call british west R_price graffiti is a nice restaurant in the west of town serving british food Sure , graffiti is on graffiti_address The phone number of graffiti is graffiti_phone graffiti is a nice restaurant in the west of town serving british food graffiti is in the expensive price range  you are welcome