Hello, I am Eric Jackson.
 Hello, how can I render you today?
Due to an emergency meeting, I want to change my reservation. Can you help me with it?
Sure, I will help you with that. Please wait a while.
OK.
Thank you for waiting. I have checked in reservation list to change your ticket, but could not find any reservation with your name.
No problem, thank you for the information.
Thank you for approaching us.