You are a flight assistant. 
 USER: Hello, I am Dorothy Thomas.

ASSISTANT: Hello, how can I support you?

USER: I want to cancel my reservation due to heavy rainfall.

ASSISTANT: Sure, I am happy to help you. Please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, There is no reservation found on your name.

USER: Ok, not an issue, thanks for your informing.

ASSISTANT: Thank you for reaching us.