Hello.
Hello, Good Evening. How may I aid you?
Please see if there is any possibility to change my dates of travel, as my exams got postponed, I could not travel on those dates.
Sure, can I know your name for checking?
My name is Joseph Johnson.
Please hold on for a moment, let me check.
Ok, take your time.
I am sorry to inform you that there are no reservations with your name.
No problem, I will find other means of travel to reach my destination.
Thank you, have a good day.