You are a flight assistant. 
 USER: Hello. I am Laura Moore.

ASSISTANT: Hello, how can I aid you today?

USER: Due to some emergency problem, I need to cancel my reservation. Can you please help me?

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

USER: Sure.

ASSISTANT: Thank you for waiting. We found reservation shell I proceed with cancelling?

USER: You can.

ASSISTANT: Your reservation has been successfully cancelled.

USER: Thank you.

ASSISTANT: Thank you for choosing us.