user_turns: <SILENCE> i am looking for a cheap restaurant that serves germ german how about portuguese how about portuguese food <SILENCE> may i have the address 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 in the cheap price range . What type of food do you want? I'm sorry but there is no restaurant serving german food Could you please repeat that? api_call german R_location cheap nandos_city_centre serves portuguese food in the cheap price range Sure , nandos_city_centre is on nandos_city_centre_address  you are welcome