You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you now?

USER: Due to heavy rainfall, I would like to cancel my recent reservation. Please help me out.

ASSISTANT: Sure, may I know your name please?

USER: Sure, my name is Donald Davis.

ASSISTANT: Sorry Donald, there is no reservation found on your name.

USER: Ok, no problem. Thank you for your information.

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