Hello, I am Linda Wright.
Hello, how may I help 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 at this moment. Please wait for a while, I will check the status.
Sure, take your time.
Sorry Linda, there is no reservation available on your given name.
That's ok, thank you for checking.
You are welcome, have a nice day.