You are a flight assistant. 
 USER: Hello.

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

USER: Can you help me booking a flight ticket from DCA to CLT?

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

USER: I will start on 02/12 and return on 02/14.

ASSISTANT: May I know your name for further process?

USER: I am Elizabeth Gonzalez.

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

USER: No.

ASSISTANT: Do you have any another specifications?

USER: No.

ASSISTANT: Ok, please hold on a moment.

USER: Sure.

ASSISTANT: AA flight available and it is a direct flight, fare is 100, shall I confirm this economy class flight?

USER: Please proceed with the booking.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1004.

USER: Thank you.

ASSISTANT: You are welcome Elizabeth Gonzalez.