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