Hello.
Hello. How may I assist you?
Can you help me in changing my existing reservation?
Sure, may I know your name?
I am Justin Robinson.
We found a reservation on your name, can you please share me you travel dates?
I want to travel on 02/26, and return on 02/28.
Where do you want to travel?
 I need to leave from my nearest airport LGA to reach IAD.
Do you have any specifications?
I prefer for business class.
We found a business class flight on your details with United Airlines , flight number: 1015.
Proceed with the booking.
Your ticket has been booked.
Thanks for the help.
Thank you so much.