Hello.
user
Hello, how may I serve you?
assistant
As my manager did not approve my leave, I would like to change my recent reservation. Can you aid me with this?
user
May I know your name please?
assistant
Myself Nicholas Jones.
user
Sorry, there is no reservation existing on your name.
assistant
That's ok, thank you for checking.
user
You are welcome, have a nice day.
assistant