user_turns: <SILENCE> im looking for an expensive restaurant that serves european food <SILENCE> phone number and 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 ? api_call european R_location expensive eraina is a great restaurant serving european food and it is in the expensive price range The phone number of eraina is eraina_phone  you are welcome