user_turns: <SILENCE> polynesian food south polynesian food portuguese food <SILENCE> phone number phone number address 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 part of town do you have in mind? the good luck chinese food takeaway is a nice place in the south of town I'm sorry but there is no restaurant serving polynesian food api_call portuguese R_location R_price nandos is a nice place in the south of town serving tasty portuguese food nandos is a great restaurant The phone number of nandos is nandos_phone Sure , nandos is on nandos_address  you are welcome