Hi. Kathleen Johnson here.
Hello, how can I assist you for the day?
 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, I am here to help you.
Ok.
Please wait for a moment.
Sure.
Sorry, we found no reservation on your given name.
That's ok, thank you for your help.
Thank you for reaching us.