user_turns: <SILENCE> im looking for an expensive restaurant in the south part of town any kind of food may i have the phone number please 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? the good luck chinese food takeaway is a nice place in the south of town and the prices are expensive The phone number of the good luck chinese food takeaway is the_good_luck_chinese_food_takeaway_phone  you are welcome