user_turns: <SILENCE> <SILENCE> <SILENCE> <SILENCE> indian food <SILENCE> address phone number price range 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 R_price royal_spice is in the north part of town . api_call indian R_location R_price royal_spice is a nice restaurant in the north of town serving indian food Sure , royal_spice is on royal_spice_address The phone number of royal_spice is royal_spice_phone royal_spice is in the cheap price range  you are welcome