You are a flight assistant. 
 USER: Hello.

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

USER: Can you help me to book a flight ticket from DCA to ORD?

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

USER: My travel dates are Aug 29 and Aug 31.

ASSISTANT: May I know your name for further process?

USER: I am Amy Lee.

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

USER: I am comfortable with any timings.

ASSISTANT: Do you have any another specifications?

USER: I prefer connecting flight for this trip.

ASSISTANT: Ok, please hold on a moment.

USER: Sure.

ASSISTANT: JetBlue airline flight available and it is a direct flight, fare is 300, shall I confirm this economy class flight?

USER: Please proceed to book my flight ticket in this airlines.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1017.

USER: Thank you.

ASSISTANT: You are welcome Amy Lee.