Hello.
Hello, how may I help you today?
 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?
Sure, I am here to help you with this.
Thank you.
May I know your good name please?
Sure, myself Scott Wright.
Please wait for a moment.
Sure.
Sorry Scott, there is no active reservation found as per your name to change it in your database.
It's ok, thank you for your help.
You are welcome.