user_turns: <SILENCE> mexican food any <SILENCE> 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 part of town do you have in mind? api_call mexican R_location R_price sitar_tandoori is in the east part of town . Sure , sitar_tandoori is on sitar_tandoori_address  you are welcome