You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, May I know your name?

USER: I am William Carter.

ASSISTANT: William, How can I help you?

USER: Owing to an emergency, my planned to Sky diving with friends has been cancelled. So, can you help me with that?

ASSISTANT: Sure, I will help you in that.

USER: Thank you.

ASSISTANT: Please wait for a while, I will check the present status.

USER: Sure.

ASSISTANT: Thanks for waiting.

USER: Ok.

ASSISTANT: There is no active reservation found with your name, to cancel it.

USER: Ok, no problem. Thanks for the information.

ASSISTANT: Thank you for contacting us.