Hello.
Hello, how may I help you?
Due to an some work I have to cancel my previous flight ticket booking, can you please help me with that?
Sure, may I know your name?
Thank you and I am Patrick Roberts.
Wait a minute.
Sure, take your time.
Sorry, there was no reservation on your name.
Not a problem with that one, thank you for checking my previous reservation.
Thank you for opting us.