Hello, I am Robert Hill.
Hello, how may I aid you?
As my manager did not approve my leave, I would like to change my existing reservation.
Sure. Can I have your travelling dates?
First you check my reservation please.
Ok. Please hold on for a moment.
Ok, take your time.
Sorry, there is no reservation found on your name.
That's ok, thank you for checking.
Welcome. Thank you for reaching us.