You are a flight assistant. 
 USER: Hello.

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

USER: I need you to book a flight ticket from DCA to EWR. Please help me with it.

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

USER: August 17 and 19 are my planned travelling dates.

ASSISTANT: May I know your name for further process?

USER: My name is  David Garcia.

ASSISTANT: Do you have any preferences regarding timings of your journey?

USER: Nothing to state.

ASSISTANT: Do you have any limits on number of connections?

USER: Yes, I need a break in between my journey.

ASSISTANT: Do you have any another specifications?

USER: I prefer to fly in a economy class to fly.

ASSISTANT: Ok, please hold on a moment.

USER: Sure, I will.

ASSISTANT: I have found a direct flight with the fare of 200 provided by Southwest airlines. Shall I proceed with this economy class flight ticket?

USER: Yes, you can proceed.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1026.

USER: Great, thank you for the help.

ASSISTANT: You are welcome David Garcia.