Hi, I am Joseph Hall.
Hello, how can I help you today?
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. So, can you help me with it?
Sure, please wait for a while, I will check the reservation list and revert to you.
Ok.
We hardly tried to find your reservation but, no reservation has been found with your name.
That's ok.
Thanks for reaching us.