You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I need to cancel my reservation due to my planned event got cancelled so please help me with that.

ASSISTANT: Sure, may I know your name for finding your reservation?

USER: Sure, myself Debra Moore.

ASSISTANT: I am sorry to say, no reservation found on your name.

USER: Oh! May be booking has not done properly.

ASSISTANT: Thank you for using our service.

USER: Anyway, thank you for your time.