user_turns: <SILENCE> <SILENCE> corsica food gastropub food <SILENCE> south north 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 corsica food There are restaurants serving gastropub food . What area do you want? What part of town do you have in mind? I'm sorry but there is no gastropub restaurant in the south of town Could you please repeat that?  you are welcome