Hello.
Hello. How may I help you?
Owing to an  emergency, my sky diving has been cancelled.
Ok.
Can you help me to cancel my reservation?
Sure. May I know your name please?
Thank you. This is John Hernandez.
Wait for a moment please.
Ok.
I have searched online but I could not find your flight reservation to cancel it.
Ok, thank you for informing me.
Thank you.