You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Matthew Brown here. I made a reservation earlier this week to give a seminar but due to weather conditions I need to cancel it.

ASSISTANT: Sure, please wait a moment.

USER: Ok.

ASSISTANT: Sorry to inform, no reservation found with your name.

USER: That's ok, thank you for checking.

ASSISTANT: Thanks for choosing us.