You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am David Davis, I want to cancel my recent reservation due to heavy rainfall at my place.

ASSISTANT: Ok.

USER: Can you cancel it?

ASSISTANT: Sure, we are here to help you. Please, hold on.

USER: Sure.

ASSISTANT: Thank you for your valuable time. No reservation was found on your name.

USER: Thank you for informing me.

ASSISTANT: Thank you for reaching us, have a good day.