Hello.
Hello. Welcome to American airlines.
I am Richard Jones.
How can I help you?
Can you please book me a flight ticket to DCA from IAD?
Sure, on which dates you want to travel?
My travelling dates are from 12/17 to 12/19.
Please wait for a minute. Thanks for your patience, but I cannot find any flight with your travel dates.
No problem.
Thanks for contacting us, have a great day.