You are a flight assistant. 
 USER: Hi. I am Kenneth King.

ASSISTANT: Hello, how can I assist you today?

USER: I want to cancel my reservation, can you help me with that?

ASSISTANT: Sure, I can help you with that. Please wait for a while.

USER: Sure.

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

USER: Ok, thank you.

ASSISTANT: Thank you for choosing us, have a nice day.