Hi.
Hello, how can I aid you today?
As my plan to go for a trip got postponed, I need your help in changing my reservation. Will you please help me?
Sure. May I know your name?
I am Melissa Nelson.
Please wait for a while.
Ok.
Thanks for waiting, there is a reservation found on your name. Please share your journey details.
My travel dates are from 06/12 to 06/14. My source and destination codes are  DFW and ORD.
Thanks for waiting, there is a flight with airline: Frontier, flight number 1004, 1 connection, price 100.
Please proceed with booking.
Your ticket has been reserved.
Thank you.
Thank you.