Hello, I am Jeffrey Miller.
user
Hello, how can I help you Mr.Miller?
assistant
Can you please change my reservation due to postpone of my educational trip?
user
Sure, please wait for a while.
assistant
Ok.
user
There is a reservation done on your name, may I know your new travelling details?
assistant
Sure, my travelling dates are 07/28 and 07/30.
user
May I know your airport codes?
assistant
Boarding is at LAX and landing is at ORD.
user
There is  Delta 1006 airline which matches your requirements. Shall I proceed with booking?
assistant
Please proceed for booking.
user
Your booking has been confirmed on name of Jeffrey Miller..
assistant
Thanks for changing my reservation.
user
Thank you for approaching us.
assistant