Hi, Donald Parker is here.
Hello, By what way, can I help you out?
 Actually I made a earlier reservation to go for a trip with my friends, but heavy work load in office I want to change my reservation. Would you help me in this?
Sure, we are here to help you to change it. Please wait for a while.
Ok.
Thanks for waiting, there was no reservation found on your specified name.
No problem. Thank you for your helping hand.
Thank you for approaching us.