user_turns: <SILENCE> yes id like to find a cheap <SILENCE> cheap restaurant north part of town <SILENCE> address what type 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 ? api_call R_cuisine R_location cheap nandos_city_centre is in the cheap price range api_call R_cuisine north cheap royal_spice is a nice place in the north of town and the prices are cheap Sure , royal_spice is on royal_spice_address royal_spice serves indian food  you are welcome