user_turns: <SILENCE> expensive restaurant east part of town any any type yes <SILENCE> anything else phone number the phone number post code 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 and the east of town . What type of food would you like? Did you say you are looking for a restaurant in the east of town? api_call R_cuisine east expensive royal_standard is a nice place in the east of town and the prices are 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 The post code of sitar_tandoori is sitar_tandoori_post_code  you are welcome