You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: Myself Patrick Lee. Due to illness, I want to cancel my recent reservation.Can you please help me out?

ASSISTANT: Sure, I can help you with that. Please allow me a moment to check the details for you.

USER: Sure.

ASSISTANT: Thank you for waiting. Patrick, I have checked and see that there is no reservation found under your name.

USER: Thank you for your help.

ASSISTANT: You are welcome.