Hello.
Hello. How may I help you today?
 I am Brian Nelson made a earlier reservation to go for a trip with my friends, but heavy work load in office I want to change my reservation. Can you help me in changing?
Sure, I can help you with that. Please wait for a while.
Ok.
Brian, there is no reservation found under your name to do modifications in that.
 Ok, not an issue. Thank you for availing me.
Thank you for reaching us.