Hello.
user
Hello, how may I aid you today?
assistant
 Owing to an emergency, I want to change my reservation. Can you please help me with that?
user
Sure, may I know your good name?
assistant
Raymond Young here.
user
I have checked in reservation list to change your ticket, but could not find any reservation with your name.
assistant
Thank you.
user
Thank you for opting us.
assistant