user_turns: <SILENCE> south portuguese how about portuguese <SILENCE> portuguese food <SILENCE> portuguese food how about portuguese yes how about portuguese what type of food how about portuguese food what is the address phone number 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 afghan food api_call R_cuisine south R_price peking_restaurant is a nice place in the south of town api_call portuguese south R_price frankie_and_bennys is a nice place in the south of town You are looking for a afghan restaurant right? Did you say you are looking for a restaurant in the south of town? I'm sorry but there is no restaurant serving afghan food peking_restaurant is a nice place in the south of town peking_restaurant serves chinese food nandos is a nice place in the south of town serving tasty portuguese food Sure , nandos is on nandos_address The phone number of nandos is nandos_phone  you are welcome