user_turns: <SILENCE> a restaurant spanish food spanish food spanish food restaurant serving 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 Could you please repeat that? I'm sorry but there is no restaurant serving canapes food  you are welcome