Hi.
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 with changing of my reservation?
Sure, may I know your good name?
Brian Phillips here.
Ok, please wait for a minute.
Ok.
Thanks for waiting, there is no active reservation found on your name.
That's ok, thank you for your help.
Thank you for choosing us.