You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you at this moment?

USER: I need to book a flight ticket from DEN to DCA, can you help me in booking a flight ticket?

ASSISTANT: Sure, I will help you with that. Can you please mention your preferable travel dates?

USER: Sure, my scheduled dates are Apr 7 and Apr 9.

ASSISTANT: May I know your name for further process?

USER: Sure, Donald Martinez here.

ASSISTANT: Do you need any specific depart and arrival time for this trip?

USER: I am comfortable with any time.

ASSISTANT: Do you have any another specifications?

USER: I prefer maximum one connection.

ASSISTANT: Ok, please hold on a moment.

USER: Sure.

ASSISTANT: JetBlue airline flight available with connection limit 1 and fare is 100, shall I confirm this economy class flight?

USER: Yes, you can.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1005.

USER: Thank you for your assistance.

ASSISTANT: You are welcome Donald Martinez.