You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

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

ASSISTANT: Sure, I can help you with that. May I know your good name please?

USER: Thank you. Please check the  reservation with my name Katherine Smith.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your time.

ASSISTANT: Katherine Smith, there is no active reservation found under your name to do cancellation.

USER: Oh! It may not be booked properly. Anyway, thank you for your time.

ASSISTANT: Thank you for choosing us.

USER: Most welcome.