Hello.
user
Hello, how may I serve you at this moment?
assistant
As my manager did not approve my leave, I would like to change my recent reservation.
user
Sure, I will help you. May I know your name?
assistant
Myself Karen Moore.
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