Hello, I am Matthew Smith.
Hello, how may I oblige you today?
I need to attend workshop in Smithsonian Institution at Washington, DCA. Can you please help me to book a flight from Las Vegas, LAS?
Sure, we are glad to serve you. Kindly mention your budget for flight ticket?
As, my budget is low I can afford only up to 200.
Do you need any stopover in between journey?
Yes, I need 1 lay by with in my route.
May I know when would you like to  travel?
I want to travel on 08/20, and need to catch return flight on 08/22.
Ok, please hold a moment, let me search a flight for you.
Sure.
Thank you for your time, we have found a Delta airline, flight number-1004 connections-1 and ticket fare is 100.
Ok, please proceed with my booking.
Sure, I have booked you at Delta airline.
Thanks for your kind service.
Thank you for opting us, have a safe and happy journey.