Hello.
Hello. How may I help you?
Due to sudden health issue, I am not able to travel in a flight. So, I would like to cancel my reservation. Can you please help me out with that?
May I know your name please?
Sure, I have reserved it on the name of Brian Martinez.
No reservation found  in our database with your name.
Oh! I think the ticket was cancelled by my cousin. Anyway, thank you for the information.
Thank you have a good day.