You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

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

ASSISTANT: Sure, May I know your name?

USER: I am Kathleen Evans.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: Sorry Kathleen, There is no active reservation on your name.

USER: No problem, thanks for your information.

ASSISTANT: Thank you.