Hi.
user
Hello. How may I assist you?
assistant
I am John Roberts. Can yu help me in changing my recent reservation, as my exam is postponed?
user
Yes, please I will help you with the change of flight ticket booking.
assistant
Ok.
user
Thanks for waiting. But I am sorry to say that there is no flight reservation on your name to change it.
assistant
That's ok, thank you.
user
Thank you.
assistant