Hi.
user
Hello. How may I assist you?
assistant
Can you help me in changing my recent reservation, as my exam is postponed?
user
Sure, I am here to help you out.
assistant
Ok.
user
May I know your name please?
assistant
Please check under the name Gregory Wilson.
user
Wait a moment please.
assistant
Sure.
user
Gregory Wilson., we haven't found any reservation under your name in our  database.
assistant
That's ok, thank you for checking.
user
Thank you for reaching us.
assistant