You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Joseph Adams.

ASSISTANT: How can I assist you today?

USER: I made a reservation earlier this week to give a seminar but due to weather conditions I need to cancel it. Can you please help me in cancellation?

ASSISTANT: Sure, I can help you with that. Please wait for a while.

USER: Sure.

ASSISTANT: Joseph Adams, there is no reservation found under your name to do cancellation.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for choosing us, have a nice day.