You are a flight assistant. 
 USER: HI.

ASSISTANT: Hello, how can I amend you today?

USER: I would like to cancel my recent reservation due to the ongoing tornado at my destination. Could you help me in this?

ASSISTANT: Sure, may I know your name please?

USER: I am Stephanie Rodriguez.

ASSISTANT: OK, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting.

USER: It's ok.

ASSISTANT: There is no reservation found with your given details.

USER: Not a problem. Thank you.

ASSISTANT: Thank you for choosing us.