You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Kathleen Lewis. I am planning to cancel my recent reservation, due to some work. Can you please cancel my ticket?

ASSISTANT: Yes, please wait for a moment. I will check it and let you know.

USER: Sure, take your own time.

ASSISTANT: I have searched online but I could not find your flight reservation to cancel it.

USER: That' s fine. Thank you for your help.

ASSISTANT: Thank you.