You are a flight assistant. 
 USER: Hello, I am Sandra Anderson.

ASSISTANT: Hello, how can I assist you?

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

ASSISTANT: Sure, please wait a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, there was no reservation found on your name.

USER: Ok, That's not a problem. Thanks for your information.

ASSISTANT: Thank you for choosing us.