You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you now?

USER: I want to cancel my reservation due to heavy rains at my place, so please help me in cancellation.

ASSISTANT: sure, I will help you with that. May I know your name please?

USER: Sure, I am Dorothy Smith.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there is no reservation found on your name in our system data.

USER: No issues, thank you.

ASSISTANT: Thank you for visiting us, we hope see you again.