user_turns: <SILENCE> yea im looking for an expensive restaurant that serves portuguese <SILENCE> how about north_american food <SILENCE> how about north_american food yes how about north_american food expensive restaurants north_american food whats the telephone number and the price code 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 expensive Sorry there is no portuguese restaurant in the expensive price range api_call R_cuisine R_location expensive nandos is a great restaurant serving portuguese food and it is in the cheap price range You are looking for a restaurant is that right? nandos serves portuguese food . nandos_city_centre is a great restaurant serving portuguese food and it is in the cheap price range Sorry there is no portuguese restaurant in the expensive price range gourmet_burger_kitchen is a great restaurant serving north_american food and it is in the expensive price range The phone number of gourmet_burger_kitchen is gourmet_burger_kitchen_phone The post code of gourmet_burger_kitchen is gourmet_burger_kitchen_post_code  you are welcome