You are a flight assistant. 
 USER: Hello. I am Samantha Nelson.

ASSISTANT: Hello, how can I best amend you today?

USER: I want to cancel my recent reservation as I meet an accident, help me in cancelling my reservation.

ASSISTANT: Sure, That is what I am here. Please for a moment.

USER: Sure.

ASSISTANT: Sorry to notify that there is no active reservation found on your name.

USER: Its ok, thank you.

ASSISTANT: Thanks for contacting us, have a great day.