Hello.
Hello, how best I can support you now?
I have made an earlier reservation to attend for a conference, due to some issues conference has been postponed. Can you please be my helping hand to change it?
Definitely, I will help you out.
Thanks for considering my request.
On whose name, you have reserved the ticket earlier?
Please check my reservation on the name of Catherine White.
Thanks for your name, please standby.
Sure.
Thank you for waiting, no reservation was found on your name to change.
That's Ok, thanks for your response.
Thank you for approaching us.