Hello, I am Andrew Edwards.
Hello. How can I help you today?
As my manager did not approve my leave, I would like to cancel my recent reservation.
Sure, I can help you in canceling your reservation.
How much refund can I expect from the cancellation of the ticket?
Ok, please wait a moment, I will inform if there is any reservation available on your name.
Sure.
There is no previous reservation available on your name Andrew Edwards.
It's very urgent to me, can you recheck it once?
Sorry I understand your problem, but there is no reservation available on your name.
Thanks a lot, may be there is some problem from my side. I will check with my assistant and revert to you if my issue is unsolved.
Ok. Thank you for contacting us, have a nice day  Andrew Edwards.