user_turns: <SILENCE> im looking for a cheap restaurant that serves portuguese food <SILENCE> whats the phone number whats the area 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 ? api_call portuguese R_location cheap nandos_city_centre serves portuguese food . The phone number of nandos_city_centre is nandos_city_centre_phone nandos_city_centre is a nice place in the centre of town  you are welcome