Hello.
user
Hello, How may I support you today?
assistant
 I want to change my recent reservation as my joining date got postponed. Can you help me in changing?
user
Sure, May I know your name to change your reservation?
assistant
My name is Larry Lewis.
user
Please wait for a couple of minutes.
assistant
Sure.
user
Thanks for waiting, we did not find any reservation on your name to change your reservation.
assistant
That's ok, no problem. Anyway thank you for checking.
user
Thank you for consulting us.
assistant