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

ASSISTANT: Hello, how may I help 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, please wait for a while.

USER: Ok.

ASSISTANT: Sorry, no reservation found with your name.

USER: Ok, no issue. Thank you.

ASSISTANT: Thanks for choosing us.