user_turns: <SILENCE> spanish food spanish center of town center location <SILENCE> mexican food <SILENCE> anything else spanish food spanish food 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? I'm sorry but there is no restaurant serving canapes food Could you please repeat that? I'm sorry but there is no restaurant serving canapes food api_call spanish R_location R_price pizza_express Fen Ditton is a nice place in the centre of town api_call mexican R_location R_price Sure , pizza_express Fen Ditton is on pizza_express_Fen_Ditton_address I'm sorry but there is no mexican restaurant in the centre of town Can I help you with anything else? I'm sorry but there is no restaurant serving canapes food  you are welcome