Hello, I am Justin Roberts.
Hello, how may I aid you at this moment?
As my manager did not approve my leave, I would like to change my recent reservation.
Sure, I will help you. Please send your travelling dates.
First check the ticket with my name.
Ok, please wait for a while.
Sure, take your time.
Sorry Roberts, there is no reservation existing on your name.
That's ok, thank you for checking.
You are welcome. Thank you for reaching us, have a nice day.