user_turns: <SILENCE> <SILENCE> cheap restaurant yes yes south <SILENCE> anything else address phone number 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? There are restaurants in the cheap price range . What type of food do you want? You are looking for a restaurant serving any kind of food right? What part of town do you have in mind? api_call R_cuisine south cheap the_lucky_star is a nice place in the south of town and the prices are cheap nandos is a nice place in the south of town and the prices are cheap Sure , nandos is on nandos_address The phone number of nandos is nandos_phone  you are welcome