You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER:  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?

ASSISTANT: Sure, I am here to help you with this.

USER: Thank you.

ASSISTANT: May I know your good name please?

USER: Sure, myself Scott Wright.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry Scott, there is no active reservation found as per your name to change it in your database.

USER: It's ok, thank you for your help.

ASSISTANT: You are welcome.