Hi.
Hello, how can I serve you the best today?
Owing to an emergency, my meeting with client got postponed, so I want you to change my existing reservation.
Sure, we are here to help you. On whose name, I have to check the reservation list?
Margaret Young here.
Please wait for a while.
Sure.
Thanks  for your time, there is no active reservation found in your name.
Ok, no issues.
Thank you for reaching us.