Hello.
Hello, how may I help you today?
I had booked a flight ticket in the name Betty Jackson. But as my leaves is not  been approved  I want to cancel my ticket, can you help me?
Sure, please wait for a moment. I will help you in this.
Ok, take your time.
Sorry Betty, there is no reservation found on your name to cancel your reservation.
That's ok, thank  you for your aid.
You are welcome.