Hi.
Hello, how may I help you today?
I want to fly from LAS to DCA. Can you book a ticket from that route?
Sure, can I know your good name please?
Sure, Helen Nelson here.
 When you are willing to travel?
My planned travel dates are 09/19 and 09/21.
Do you need direct flight or connecting flight?
I want a flight with single connection.
 Would you let us know if you have any other preferences?
No more, thank you.
Sorry to say that, there are no flights available on the routes of your journey.
No issues, thank you for the information.
Thank you for choosing us.