You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How best can I provide service to you?

USER: I am Patrick Lee.

ASSISTANT: Ok.

USER: I want to cancel my reservation due to bad weather condition at my place.

ASSISTANT: Sure, I will help you with that.

USER: Sure. Thank you.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: We are happy to inform you that, we found a reservation on your name. Shall I proceed to cancel?

USER: Please cancel it.

ASSISTANT: Your ticket has been cancelled.

USER: Thank you for helping me.

ASSISTANT: Thanks for approaching us.