Hi.
user
Hello, how may I aid you?
assistant
Please help me out in booking the ticket from DCA to PHL.
user
May I know your itinerary dates?
assistant
My trip dates will be Mar 20 to Mar 22.
user
May I know your name?
assistant
Patrick Moore is my name.
user
Sorry Patrick Moore, no flights are available on your route.
assistant
That's ok, thank you.
user
Thank you for choosing us.
assistant