user_turns: <SILENCE> im looking for an expensive restaurant in the east part i dont care <SILENCE> what kind of food is it may i have the phone number 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 kind of food would you like? api_call R_cuisine east expensive sitar_tandoori is a nice restaurant in the east of town serving indian food sitar_tandoori serves indian food The phone number of sitar_tandoori is sitar_tandoori_phone  you are welcome