Hi.
user
Hello, how may I help 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 with this. May I know your good name please?
assistant
Rachel Young here.
user
Ok, wait for a mean while.
assistant
Ok.
user
Sorry, there is no active reservation found on your name to change it in your database.
assistant
That's ok, thank you for your help.
user
You are welcome.
assistant