Hello, I am Karen Davis.
user
Hello, how may I help you at this moment?
assistant
As my manager did not approve my leave, I would like to change my reservation.
user
Sure. Please wait for a moment.
assistant
Ok, ensure it is a single connecting flight.
user
Sorry, there is no reservation existing on your name.
assistant
That's ok, thank you for checking.
user
Thank you for reaching us.
assistant
Welcome.
user