user_turns: <SILENCE> expensive restaurant it should serve persian food <SILENCE> european type of food <SILENCE> address phone number area of venue 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 persian R_location expensive Sorry there is no persian restaurant in the expensive price range api_call european R_location expensive eraina is a great restaurant serving european food and it is in the expensive price range Sure , eraina is on eraina_address The phone number of eraina is eraina_phone eraina is a great restaurant serving european food and it is in the expensive price range  you are welcome