You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

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

ASSISTANT: Sure, please wait for a moment to check your details.

USER: Ok.

ASSISTANT: No reservation found for this search.

USER: That's fine. Anyway, thank you for your help.

ASSISTANT: Sorry for inconvenience. Thank you for choosing us.

USER: That's ok.