user_turns: <SILENCE> how about portuguese food portuguese i dont care <SILENCE> whats their address 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 ? I'm sorry but there is no restaurant serving austrian food What part of town do you have in mind? api_call portuguese R_location R_price nandos serves portuguese food in the cheap price range Sure , nandos is on nandos_address  you are welcome