Hi.
user
Hello, how may I aid you?
assistant
Mark Davis here. Can you please change my existing reservation? As my meeting has been postponed to some other dates.
user
Sure, I am here to help you out. Please provide allow me a moment.
assistant
Sure.
user
Sorry Davis, there is no reservation on your name.
assistant
That's ok, may be something went wrong while I was booking my ticket. Thank you anyways.
user
Thank you for reaching us.
assistant