user_turns: <SILENCE> im looking for a restaurant in the center halal food <SILENCE> how about how about spanish food <SILENCE> 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 halal R_location R_price Sorry there is no halal restaurant in the centre of town gourmet_burger_kitchen is a nice restaurant in the centre of town serving north_american food api_call spanish R_location R_price la_raza is a nice restaurant in the centre of town serving spanish food The phone number of la_raza is la_raza_phone  you are welcome