You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, Please inform me, How may I assist you the day?

USER:  I am Ronald Lee want to cancel my reservation due to heavy rainfall. Can you please help me with it?

ASSISTANT: Sure, that is what I am here. Just give me a moment please.

USER: Ok.

ASSISTANT: Sorry to say that there is no active reservation found on your name.

USER: Thank you for your help.

ASSISTANT: Thanks for approaching us, have a nice day.