user_turns: <SILENCE> cheap restaurant any south <SILENCE> address phone number 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? What part of town do you have in mind? api_call R_cuisine south cheap the_lucky_star is a nice restaurant in the south of town serving chinese food Sure , the_lucky_star is on the_lucky_star_address The phone number of the_lucky_star is the_lucky_star_phone  you are welcome