Hello, I am Rebecca Rodriguez.
user
Hello, how may I aid you today.
assistant
As my manager did not approve my leave, I would like to change my recent reservation.
user
Sure, I am here to help you out. Please allow me a moment.
assistant
Sure, take your time.
user
Sorry  Rebecca Rodriguez, there is no reservation on your name in our database.
assistant
That's ok, thank you for checking.
user
Thank you for reaching us.
assistant
Welcome.
user