You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Raymond Miller.

ASSISTANT: How can I assist you today?

USER: I am planning to book a ticket from DCA to DCA. Can you please help me out to book a flight ticket?

ASSISTANT: Sure, can I know your preferable dates?

USER: I am planning to travel on Apr 4 and return back on Apr 6.

ASSISTANT: Do you have any specifications?

USER: I would like to go on economy class.

ASSISTANT: There is a flight with Hawaiian airline having 1 connection and airfare is 200. Can I proceed to booking?

USER: That's fine, please proceed the booking.

ASSISTANT: Your ticket is confirmed with the flight-1004.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.