You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER:  Can you cancel my reservation, which is done earlier? As I need to stay back on my home due to the sudden rainfall.

ASSISTANT: Yes, may I know your name please?

USER: I am Patricia Adams.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry to inform we didn't find any reservation on your name.

USER: No problem, thank you for your information.

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