Hi.
Hello.
I am John Robinson.
In what way can I aid you at this moment?
 I already made a reservation to attend a meeting, due to some problems meeting place has been changed. So, I need a few changes in my reservation. Can you help me in doing that?
Sure, I will help you.
Thank you.
Give a minute, I will check and let you know the status.
Sure.
Thanks for being patience.
Ok.
Sorry, I did not get any reservation on your name.
Not an issue.
Thank you for approaching us, have a nice day.