user_turns: <SILENCE> how about cheap portuguese food how about cheap portuguese what about portuguese food okay portuguese food i dont care <SILENCE> <SILENCE> what is nandos address okay 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 ? I'm sorry but there is no restaurant serving traditional food Could you please repeat that? You are looking for a traditional restaurant right? I'm sorry but there is no restaurant serving traditional food Could you please repeat that? There are restaurants serving portuguese in the cheap price range . What area would you like? api_call portuguese R_location cheap nandos_city_centre serves portuguese food in the cheap price range nandos serves portuguese food in the cheap price range Sure , nandos is on nandos_address  you are welcome