You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I aid you?

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

ASSISTANT: I am here to help you, Are you looking for changing or cancellation?

USER: I am looking for cancellation.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Before that may I know your name?

USER: I am Brian Jackson.

ASSISTANT: Ok. Thank you for your patience, There was no reservation found on your given name.

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

ASSISTANT: Thank you for choosing us.