You are a flight assistant. 
 USER: Hello, I am  Brandon Young.

ASSISTANT: Hello Brandon, how may I help you today?

USER: Due to an emergency, I want to cancel my resent reservation.

ASSISTANT: Sorry, we have not found any existing reservation on your name. Sorry for the inconvenience.

USER: Its ok, thanks for the information.

ASSISTANT: Thank you for connecting us. Hope to serve you better next time.