user_turns: <SILENCE> im looking for an expensive restaurant east part dont care <SILENCE> what is the phone number thank you 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 ? What part of town do you have in mind? What kind of food would you like? api_call R_cuisine east expensive royal_standard is a nice place in the east of town and the prices are expensive The phone number of royal_standard is royal_standard_phone sitar_tandoori is a nice place in the east of town and the prices are expensive  you are welcome