Hi.
Hello. How may I assist you for today.
 I am Thomas Smith want to visit LAS, can you book a ticket from IAD?
Yes, can you tell me your travelling dates?
Sure, my travelling dates will be 04/13 and 04/15.
Give me a moment.
Ok.
I have found a flight ticket with a price of 200 and 1 connection.
Ok, proceed with this flight.
Your ticket has been booked.
Thank you.
Thank you for contacting us.