Hi,.
Hello. How can I aid you?
I need a ticket from Las Vegas, NV-LAS to Washington DC-DCA.
Sure, I  can help you. Please share me your travelling dates.
Departure date is 10/26 and 10/28 is my return date.
Do you need any connecting flight?
I need direct flight.
May I know your name?
I am Emily Young.
Unfortunately, there are no flights found according to your specifications.
Thanks.
Thank you for choosing us.