You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Myself Joshua Wilson, I have to attend a seminar for next week at Charlotte. Can you please help me in booking the ticket from DTW to CLT?

ASSISTANT: Sure, may I know your preferable travel dates please?

USER: I will take-off 12/09 and again I will be return back on 12/11.

ASSISTANT: There is a flight available on your requested dates from Spirit airlines with 2 connecting flight.Shall I confirm your booking?

USER: Can you please check for a single connection.

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

USER: Not a big problem, anyhow thank you very much for your service.

ASSISTANT: You are welcome.