Hi. I am Paul Parker.
Hello. How can I help you?
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. Can you help me with it please?
 Ok, please wait I will revert you.
Ok, take your time.
 Sorry, no reservation was found on your name.
That's ok, thank you for the response.
Thank you for opting us.