user_turns: <SILENCE> a cheap restaurant any south south <SILENCE> give me the least <SILENCE> give me the address and what kind of food okay 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 cheap price range . What type of food do you want? There are restaurants serving any kind of food in the cheap price range . What area would you like? What part of town do you have in mind? api_call R_cuisine R_location cheap nandos is a nice place in the south of town and the prices are cheap api_call R_cuisine south 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