user_turns: <SILENCE> i need a cheap restaurant barbecue food <SILENCE> what about indian food in the cheap price range any area <SILENCE> anything else what is the address 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? api_call R_cuisine R_location cheap Sorry there is no barbeque restaurant in the cheap price range There are restaurants serving indian in the cheap price range . What area would you like? api_call indian R_location cheap royal_spice is a nice restaurant in the north of town serving indian food royal_spice is a great restaurant serving indian food and it is in the cheap price range Sure , royal_spice is on royal_spice_address  you are welcome