You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I have booked a ticket recently to participate in a dance competition, but suddenly that competition has cancelled. Can you please help me to cancel me recent reservation?

ASSISTANT: Sure, I can help you with that. Please provide me the name, on which you have made reservation previously?

USER: Sure, it's Dorothy Parker.

ASSISTANT: Sorry for the inconvenience, but no reservation was found under your name Dorothy Parker.

USER: Ok, may be some one have already made a cancellation.

ASSISTANT: Have a nice day, thank you for using our services.

USER: Thank you for your time.