user_turns: <SILENCE> polynesia food thai thai food thai food more no 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 polynesian food You are looking for a polynesian restaurant right? Sorry would you like chinese or polynesian food? I'm sorry but there is no restaurant serving polynesian food Let me confirm , You are looking for a restaurant in the moderate price range right? Sorry would you like polynesian or chinese food?  you are welcome