Hello, I am William Brown.
user
Hello, How can I help you?
assistant
I want to book a flight ticket from PHX, can you help me for booking a flight to DEN?
user
Sure, May I know the travel dates?
assistant
My travelling dates are from 10/15 to 10/17.
user
Very sorry, No flights found with your chosen dates.
assistant
Ok, no issue. Thanks for your service.
user
Thank you for availing us.
assistant