Hi.
Hello, how can I help you?
Due to an emergency trip with my friend, I want to change my existing reservation.
Sure. May I know your name please?
I am Michael Perez.
We found reservation on your given name, can you please provide your new journey details?
Ok. I need to ravel from IAD to ORD. And my journey dates are from  04/22 to 04/24.
Please wait for a while.
Sure.
We found a flight with Frontier airlines, flight number is 1005 with one connection and price is 100. Shall I proceed?
Ok, you can proceed.
Ok, your ticket has been booked.
Thank you for your assistance.
Thanks for choosing us.