Hello.
How may I serve you at this moment?
I made a reservation earlier this week to give a seminar, but my seminar has been postponed.
OK.
Can you aid me to change it?
Sure, please let me know your name to check your reservation?
Sure, my name is Dorothy Carter.
I regret that there is no reservation found on your name.
That's Ok, thanks for your information.
Thanks for approaching us, have a good day.