You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Rachel Hill.

ASSISTANT: How can I assist you?

USER: I want to cancel my reservation due to heavy rainfall at my place. Can you help me?

ASSISTANT: Sure, please wait a moment. Sorry, there is no reservation found on your name.

USER: Ok, thank you for notifying me.

ASSISTANT: Thank you for approaching us.