Hi.
user
Hello, how may I aid 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 with changing of my reservation?
user
Sure, I am here to help you.
assistant
Ok.
user
May I know your name for checking previous reservation in our database?
assistant
Jerry Edwards here.
user
Please wait for a moment.
assistant
Ok.
user
Sorry to inform you that, there is no reservation found as per your name in our database.
assistant
That's ok, thank you for your help.
user
Thank you for reaching us with a query.
assistant