user_turns: <SILENCE> im looking for polynesian food how about vietnamese vietnamese <SILENCE> can i have the address can i okay thank you 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 Sorry would you like polynesian or vietnamese food? api_call vietnamese R_location R_price thanh_binh serves vietnamese food Sure , thanh_binh is on thanh_binh_address thanh_binh is a great restaurant  you are welcome