Hello.
user
Hello, how can I assist you today?
assistant
 I have to do some modification in my previous flight ticket booking that there is a sudden event held at my home town, so I am unable to travel the trip. Can you please help me out in changing my reservation?
user
Sure, I will help you with that.
assistant
Thank you.
user
Let me know your name to check your reservation?
assistant
Sure, myself Janet Wright.
user
Ok, please wait a moment.
assistant
Sure.
user
Thank you for waiting. I have checked in reservation list to change your ticket, but could not find any reservation with your name.
assistant
It's ok, thank you for your help.
user
Thank you for choosing us.
assistant