You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you at present?

USER: I need to cancel my reservation due to some personal issues.So can you help me with cancellation of my reservation?

ASSISTANT: Sure, I am here to help you with cancellation.

USER: Thank you.

ASSISTANT: In whose name, your reservation has been done earlier?

USER: I am Kevin Mitchell.

ASSISTANT: Thanks for providing your name, please wait for a while.

USER: Sure.

ASSISTANT: Sorry to say that, there was no active reservation found on your name to cancel it.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for availing us.