Hello.
Hello,. What kind of help can I provide to you?
Myself David Garcia.
Ok.
I want to book a flight from DFW to IAD.
Sure, Can you mention your journey dates?
My preferable dates are from 08/17 to 08/19.
Ok, Please wait for a couple of minutes.
Sure, take your time.
 Thanks for waiting, there are no flights available at this moment matching your particulars.
Ok, no problem thank you.
Thanks for your presence.