Hello. I am John Campbell.
Hello, how can I help you today?
As the invitation which I got to attend for talk festivity has been postponed, I want you to change my reservation.
Ok.
Can you please help me?
Sure, I am here to help you.
Thank you.
Please wait for a while, I will check your reservation.
Sure.
Thank you for being patience, there is no previous reservation found on your name.
It's ok, Thank you.
Thank you for approaching us.