user_turns: <SILENCE> expensive mexican <SILENCE> phone number phone number 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 mexican R_location expensive chiquito_restaurant_bar serves mexican food in the expensive price range chiquito_restaurant_bar is a great restaurant The phone number of chiquito_restaurant_bar is chiquito_restaurant_bar_phone  you are welcome