user_turns: <SILENCE> unusual food french food <SILENCE> was yes 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 ? I'm sorry but there is no restaurant serving unusual food There are restaurants serving french food . What area do you want? What part of town do you have in mind? Did you say you are looking for a restaurant in the west of town? I'm sorry but there is no french restaurant in the west of town  you are welcome