Hello, I am Katherine Collins.
Hello Katherine Collins, how can I help you?
I want to change my existing reservation due to my meeting got postponed. Can you help me with this?
Sure, I can help you with that.
Ok.
Wait a minute, I will go through your reservation and update you.
Sure.
No reservation has been found with your name to change as per your request.
That's ok, not a problem.
Ok, thanks for communicating with us.