Hi.
Hello. How can I assist you at this moment?
 I am Kevin Barker. I am planning to travel to my home town, but suddenly I got some work so can you help in changing my reservation?
Sure, I will help you with this. Please wait a moment, I will check the database and get back to you.
Ok.
Kevin Barker, your reservation has found in our database. Can you please provide your travelling airport codes?
My airport codes are LAX to IAH.
May I know your preferable journey dates please?
My travel dates are 11/12 to 11/14.
Delta airlines is available on this route with a ticket fare of 100, shall I book your ticket?
Yes, please proceed for booking.
Your ticket is booked with flight number 1029.
Thank you for helping me.
Thank you, have a safe journey.