Hello.
user
Hello, how can I address you?
assistant
Richard Roberts here, due to sudden changes my exams has been postponed. Can you please change my reservation?
user
Sure, I am willing to help you. Please wait a minute.
assistant
Ok.
user
Thanks for your time, sorry to say no reservation found with your name.
assistant
Not an issue, thank you for your help.
user
Thank you for availing us, have a nice day.
assistant