Hello, I am Nicholas Edwards.
Hello. How can I help you today?
As my manager did not approve my leave,  I would like to change my recent reservation. Can you aid me with this?
Sure, I'll help you in changing an existing reservation.
Thank you.
Please wait a moment I'll check the reservation list.
Sure, take your time.
Thank you for waiting, no reservation was found on your name in our database.
That's ok, thank you for checking.
Thank you.