Hello.
Hello, how may I guide you?
My name is Melissa Lopez. I would like to travel from LAS to DCA.
Ok, may I know your planned travel dates please?
My preferable dates are from 05/26 to 05/28.
 There is a flight available on your requested dates from UA airlines with 1 connecting flight.
Please proceed with the booking.
Your ticket is booked with flight 1003.
Thank you for your help.
You are most welcome.