Hello, I am Shirley Perez.
user
Hello, what aid you are looking for?
assistant
As my manager did not approve my leave, I would like to change my existing reservation.
user
Sure, can I get a moment to check your ticket details?
assistant
Ok, take your time.
user
Sorry, there is no reservation found booked under this name.
assistant
That's ok, may be my friend has changed it before.
user
Thank you for reaching us.
assistant
Thank you.
user