Hello.
user
Hello.
assistant
I am Barbara Martinez. I would like to travel from Washington to Denver on a business trip. Will you please help me to get a flight ticket?
user
Sure, if you know your airport codes then please tell me once.
assistant
Sure. Airport codes are DC-DCA to CO-DEN.
user
Your trip dates please.
assistant
My trip dates are 12/11 and 12/13.
user
Sorry Barbara Martinez, I don't found any flight. Thank you to join us.
assistant