You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: Can you help me to cancel my recent reservation?

ASSISTANT: Sure, may I know your name.

USER: I am Katherine Young.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Sorry, there are no active reservation on your given name to cancel.

USER: It's ok, thank you for checking.

ASSISTANT: Thank you for reaching our service.