user_turns: <SILENCE> looking for a restaurant in the center part of town spanish food <SILENCE> uh whats the phone number and 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 ? What kind of food would you like? api_call spanish R_location R_price pizza_express is a nice place in the centre of town The phone number of pizza_express is pizza_express_phone  you are welcome