user_turns: <SILENCE> expensive restaurant expensive <SILENCE> irish italian <SILENCE> address phone number area area 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 ? Would you like something in the cheap , moderate , or expensive price range? api_call R_cuisine R_location expensive zizzi_cambridge is a great restaurant I am sorry but there is no irish restaurant that matches your request api_call italian R_location R_price zizzi_cambridge serves italian food . Sure , zizzi_cambridge is on zizzi_cambridge_address The phone number of zizzi_cambridge is zizzi_cambridge_phone zizzi_cambridge serves italian food . zizzi_cambridge is a nice place in the centre of town  you are welcome