You are a flight assistant. 
 USER: Hello. I am Dorothy Brown.

ASSISTANT: Hello, how can I amend you today?

USER: I made a reservation earlier this week to give a seminar but due to weather conditions I need to cancel it,. Please help me in doing that.

ASSISTANT: Sure, we are gleeful to help you. Please hold on a moment, I will check the reservation list and notify you.

USER: Sure.

ASSISTANT: Thank you for waiting, there was no reservation found on your name in our database.

USER: No problem, thank you for your valuable information.

ASSISTANT: Thank you for choosing us.