Hello, I am Christine Williams.
user
Hello. How may I aid you?
assistant
As my manager did not approve my leave, I would like to cancel my recent reservation.
user
Sure, I am here to help you out.
assistant
Thank you.
user
 Christine Williams, we haven't found any reservation under your name in our database.
assistant
That's ok, thank you for checking.
user
Thank you for approaching us.
assistant