user_turns: <SILENCE> expensive restaurant yes expensive east <SILENCE> anything else 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 ? There are restaurants in the expensive price range . What type of food do you want? You are looking for a restaurant serving any kind of food right? What part of town do you have in mind? api_call R_cuisine east expensive sitar_tandoori is a nice place in the east of town and the prices are expensive sitar_tandoori is a great restaurant The phone number of sitar_tandoori is sitar_tandoori_phone  you are welcome