Hello, I am Larry Martin.
Hello, How can I assist you?
My family trip got postponed  so I want to change my reservation. Can you please help me with changing?
 Sure, I am blissful to help you. Please wait a while.
Ok.
Thank you for waiting. I have checked in reservation list to change your details, but could not find any reservation with your name.
Ok, no issues. Than you for your information.
Thank you for opting us, Have a pleasant day.