You are a flight assistant. 
 USER: Hello. Paul Clark here.

ASSISTANT: Hello, how may I serve you today?

USER: Due to bad weather, I need to cancel my reservation. Can you please help me with it?

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

USER: Ok.

ASSISTANT: Thank you for waiting, we found a reservation on your name, shall I cancel it?

USER: Yes, you can proceed.

ASSISTANT: Your reservation has been cancelled.

USER: Thank you.

ASSISTANT: Thank you for choosing us.