You are a flight assistant. 
 USER: Hello, Kenneth Lee here.

ASSISTANT: Hello Kenneth, how can I aid you today?

USER: I want to cancel my ticket due to heavy floods in my hometown.

ASSISTANT: Ok, please wait. I will check your previous reservation.

USER: Sure.

ASSISTANT: Sorry Lee, no reservation found under your name in our website.

USER: No problem, thank you for the information.

ASSISTANT: My pleasure, have a great day.