Hello.
 Hello, How exactly I can serve you the best today?
Due to sudden change of my business meeting because of some technical problem, I need to change my reservation so can you help me with that?
 Sure, may I know your good name?
I am Timothy Thomas.
 I have checked in reservation list to change your ticket, but could not find any reservation with your name.
No problem, thanks for the information.
Thank you for reaching us.