You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

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, please wait for a moment.

USER: Sure, take your time.

ASSISTANT: May I know your good name please?

USER: Myself Shirley Scott.

ASSISTANT: Sorry, there is no reservation found on your name in our database to change.

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

ASSISTANT: Thank you for approaching us.