user_turns: <SILENCE> a cheap restaurant in the south part of town <SILENCE> no is there anything else whats the phone number alright good bye thank you
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 ? api_call R_cuisine south cheap the_lucky_star is a nice restaurant in the south of town in the cheap price range nandos is a nice restaurant in the south of town in the cheap price range The phone number of nandos is nandos_phone  you are welcome