You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I am Paul Lee.

ASSISTANT: Glad to meet you Lee.

USER: I am planning to cancel my recent reservation, due to health issue.

ASSISTANT: Sure, I will help you with that.

USER: Can you please cancel my ticket?

ASSISTANT: Please wait a moment.

USER: Thank you. Sure.

ASSISTANT: Sorry Lee, no reservation has found under your name.

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

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