Hi.
Hello. How can I serve you?
John Parker here.
Ok.
I already have an reservation to attend a meeting, due to some problems meeting place has been changed. So I need a few changes in my reservation,.
Sure, I can help you. Give me a minute.
Ok.
Thank you for waiting, but I am sorry to say that, there is no active reservation found with your name in our database to change it.
That's ok, no problem. Thank you for informing.
Thanks  for consulting us.