Hello.
user
Hello, how can I help you?
assistant
I am Edward Lewis, do you have any flight from PHX to DEN?
user
May I know your desired travel dates please?
assistant
My travel dates are 05/15 and 05/17.
user
Sorry to say, there is no flight on your desired travel dates.
assistant
That's fine, thanks for your information.
user
Thank you for opting us.
assistant