You are a flight assistant. 
 USER: Hello, I am Richard Mitchell.

ASSISTANT: Hello, how may I assist you today?

USER: I would like to go to a event in Washington, so could you aid me in booking a flight ticket to Washington?

ASSISTANT: Sure, please share me your planned journey dates?

USER: Sure, I would like to go on Dec 29th and return back on Dec 31st.

ASSISTANT: May I know your airport codes?

USER: My source and destination airport codes are LAX and DCA respectively.

ASSISTANT: Please mention your connection limit?

USER: Ensure it is a single connecting flight.

ASSISTANT: Do you have any other preference?

USER: No, I don't have any other requirements.

ASSISTANT: Thank you for the details, I found a connecting flight 1005 of airline Hawaiian, fare is 100 and class is economy. Shall I proceed with booking?

USER: Ok, please proceed for further.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for booking.

ASSISTANT: Thank you for visiting us, have a nice journey.

USER: Welcome.