You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Katherine Adams.

ASSISTANT: Nice to meet you Katherine.

USER: I want to cancel my reservation, please help me.

ASSISTANT: Sure, I will help you with the cancellation of the flight ticket.

USER: Thank you.

ASSISTANT: Wait for a moment please.

USER: Ok.

ASSISTANT: I have searched online but I could not find your flight reservation to cancel it.

USER: Not a problem, thank you for the response.

ASSISTANT: Thank you.