Hello.
Hello. How can I aid you?
Can you help me to book a flight ticket from DCA to DFW?
Sure, may I know the planned travel dates to check for the flight availability?
My travel dates are Apr 10 and Apr 12.
Please provide me the specifications.
I would like to return back in the afternoon time  and an economy class flight ticket.
May I know the name?
I am William Davis.
Sorry, there are no flights are available for your desired intent.
No problem, thank you for the information.
Thank you for reaching us.