user_turns: <SILENCE> i want to find a cheap restaurant and it should be in the north part of any <SILENCE> whats the address and the post code 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 and the north of town . What type of food would you like? 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 The post code of royal_spice is royal_spice_post_code  you are welcome