Hi.
user
Hello, how can I help you?
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. Please provide your good name to proceed further.
assistant
I am James Roberts.
user
Sorry, we did not find any active reservation on your name in our data.
assistant
That's ok, thank you.
user
Thank you for availing us.
assistant