Hi. I am Pamela Wilson.
Hello, how may I amend you today?
Book a ticket from DCA to HOU.
Sure, can you please mention the dates of your travel?
Dates are 09/19 to 09/21. I need a direct flight.
Ok, please wait for a while.
Ok.
 Thank you for waiting, we are sorry to inform you that we did not find any direct flight.
Ok, no problem. Thanks for your time.
Thank you for availing us.