user_turns: <SILENCE> id like a restaurant in the south part of town what about portuguese food how about portuguese yes <SILENCE> what is the phone number and 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? I'm sorry but there is no restaurant serving basque food 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 The phone number of nandos is nandos_phone  you are welcome