user_turns: <SILENCE> restaurant south part of town venetian food venetian food how about portuguese yes portuguese no 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 kind of food would you like? I'm sorry but there is no restaurant serving english food I'm sorry but there is no restaurant serving venetian food Did you say you are looking for a restaurant in the south of town? You are looking for a venetian restaurant right? Let me confirm , You are looking for a restaurant in the cheap price range right? I'm sorry but there is no restaurant serving venetian food api_call portuguese R_location R_price nandos is a great restaurant serving cheap portuguese food in the south of town . nandos is a great restaurant The phone number of nandos is nandos_phone Sure , nandos is on nandos_address  you are welcome