Hi. Lisa Baker here.
Hello, How can I serve 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 a second.
Ok.
Sorry, No reservation found on your name.
That's ok, thank you for your help.
Thank you for opting us.