user_turns: <SILENCE> portuguese food any area any price range <SILENCE> whats the address <SILENCE> whats the address whats the phone number thank you goodbye
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 serving portuguese food . What area do you want? There are restaurants serving portuguese food in any part of town . What price range would you like? api_call portuguese R_location R_price nandos_city_centre serves portuguese food Sure , nandos_city_centre is on nandos_city_centre_address nandos serves portuguese food Sure , nandos is on nandos_address The phone number of nandos is nandos_phone  you are welcome