user_turns: <SILENCE> no no <SILENCE> italian food any area what price range what is the phone number and address 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 ? You are looking for a vietnamese restaurant right? api_call italian R_location expensive thanh_binh serves vietnamese food There are restaurants serving italian food . What area do you want? caffe_uno serves italian food caffe_uno is in the expensive price range The phone number of caffe_uno is caffe_uno_phone  you are welcome