You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Jeffrey Phillips. I would like to book a flight ticket from DTW to MSP.

ASSISTANT: May I know your travelling dates please?

USER: I am starting on 09/10 and return back on 09/12.

ASSISTANT: Sorry, there is no flight available as per your request.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: My pleasure.