user_turns: <SILENCE> cheap restaurant the south part any food <SILENCE> anything else address what type of food 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 cheap price range . What type of food do you want? There are restaurants in the cheap price range and the south of town . What type of food would you like? api_call R_cuisine south cheap nandos is a nice place in the south of town and the prices are cheap the_lucky_star is a nice place in the south of town and the prices are cheap Sure , the_lucky_star is on the_lucky_star_address the_lucky_star serves chinese food  you are welcome