Hello.
user
 Hello, how can I support you today?
assistant
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 in changing my reservation?
user
Sure, may I know your name to check further?
assistant
Sure, myself Gregory Garcia.
user
Sorry, no active reservation found with your name in our records to change it.
assistant
It's ok, thank you for your help.
user
Thank you for contacting us.
assistant