Hello. My name is Dennis Allen.
Hello, how may I assist you? Yes, Allen.
Suddenly I got a new work and I have to complete within less days, I want to cancel my existing reservation as it is not possible to travel on those days.
Sure, I will help you in cancelling the flight ticket.
Ok.
Allen, no reservation found on your name in our reservation list.
It's ok.
Thank you for reaching us.