Hi. I am Raymond Hernandez.
Hello, how can I amend you?
 I already have an reservation to attend at my meeting, due to some problems meeting place has been changed. So I need a few changes in my reservation. Can you help me in my changing reservation?
Sure, I am here to help you. Please stand by.
Sure.
Thank you for waiting, we are sorry to say that no reservation was found in our database on your name.
Not an issue. Thank you for information.
Thanks for your approach.