Hello.
Hello. How can I help you out?
 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?
Sure, I will check the reservation list and let you know.
Ok.
May I have your name please?
My name is Robert Brown.
Ok. Please wait.
Sure.
Thanks for your time. But no reservation is found on your name.
Ok, not an issue.
Thank you for choosing us.