user_turns: <SILENCE> portuguese food in the south portuguese yes <SILENCE> phone number what is the 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 ? There are restaurants in the south of town . What type of food do you want? You are looking for a portuguese restaurant right? api_call portuguese R_location R_price nandos is a nice place in the south of town serving tasty portuguese food Can I help you with anything else? The phone number of nandos is nandos_phone Sure , nandos is on nandos_address  you are welcome