Hi. Michelle Hernandez here.
Hello, how may I assist you?
 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 with changing of my reservation?
Sure, please wait for a moment.
Ok.
Sorry, there is no reservation found on your name in our database to change.
That's ok, thank you for your help.
You are welcome.