Hi.
Hello. How may I help 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?
Yes, can you share me your name?
Margaret Garcia here.
Sorry to inform you that there is no reservation found on your name.
That's ok, thank you for your help.
Thank you for contacting us.