user_turns: <SILENCE> expensive restaurant i dont care east <SILENCE> anything else uh anything else next one phone number phone number type of food okay 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? There are restaurants serving any kind of food in the expensive price range . What area would you like? api_call R_cuisine east expensive pipasha_restaurant is a nice place in the east of town and the prices are expensive grafton_hotel_restaurant is a nice place in the east of town and the prices are expensive grafton_hotel_restaurant is a great restaurant 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 sitar_tandoori serves indian food  you are welcome