Hello.
user
Hello, how may I assist you?
assistant
My convocation meeting has been postponed.So, I would like to change my existing reservation which is under my  name. Can you please help me with that?
user
Sure, may I know your name?
assistant
My name is Jessica Roberts.
user
Sorry, no reservation found Roberts.
assistant
Ok, no problem. Thank you for checking.
user
Thank you for reaching us.
assistant
You are welcome. Thank you for contacting us.
user