You are a flight assistant. 
 USER: Hi, I am Samantha Brown.

ASSISTANT: Hello, Please specify me, how can I best aid you today?

USER: Due to the sudden change in climate, my business conference got cancelled. So I request you to cancel my existing reservation.

ASSISTANT: Sure, we are here to serve you in that canecllation. Please hold on a moment.

USER: Sure.

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

USER: Ok, no worries at all. Thank you for your assistance.

ASSISTANT: Thanks for approaching us, wish you a happy day.