You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: As my friend is ill, I would like to cancel my recent reservation.

ASSISTANT: May I know your name?

USER: My name is Patricia Walker.

ASSISTANT: Sorry, there is no reservation found.

USER: Ok, no problem.

ASSISTANT: Thank you.

USER: Thank you for checking the status.