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