You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Gary Thomas.

ASSISTANT: Thomas, how can I assist you today?

USER: As I have fallen sick suddenly due to bad weather, I would like to cancel my recent reservation. Can you help me?

ASSISTANT: Sure, let me check for your reservation status.

USER: Sure.

ASSISTANT: Thomas, I have not found any reservation by your name.

USER: Please cancel it.

ASSISTANT: I have not found any reservation by your name.

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

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