You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Gregory Lewis.

ASSISTANT: How can I assist you?

USER: I am planning for a round trip from DCA to DCA, can you please help me with booking a flight ticket?

ASSISTANT: Sure, can I know your travel dates?

USER: Sure, I would like to take off on 02/10 and return back on 02/12.

ASSISTANT: The flight 1008 of Frontier is available on your requested dates with a price of 100 and with 1 connection.

USER: Ok, please proceed with the booking.

ASSISTANT: Lewis, your reservation has been done successfully.

USER: Thank you for your assistance.

ASSISTANT: You are welcome.