You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I would like to book a ticket from DCA to SEA, as there is a volleyball match to participate.

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

USER: Can you help me in booking?

ASSISTANT: Do you have any class preference?

USER: My trip dates are Nov 15 to Nov 17.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I prefer a economy class.

ASSISTANT: May I know your good name please?

USER: I am John Lee.

ASSISTANT: There is a flight available on your requested dates from Spirit Airlines with arrival time 0 AM and depart time 4 AM, shall I confirm your booking?

USER: You can confirm it.

ASSISTANT: Your ticket is booked with flight 1001.

USER: Thank you.

ASSISTANT: You are welcome.