Hi, my name is Mark Williams.
user
Hello, how can I hep you today?
assistant
Owing to an emergency, my exam got postponed to future dates, so I had a request to you to change my existing reservation.
user
Please wait a moment.
assistant
Sure.
user
We are sorry to notify you that there is no reservation found in your name.
assistant
Ok, not a problem.
user
Thank you.
assistant
Thanks for your valuable information.
user