You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself William Allen.

ASSISTANT: How can I assist  you?

USER: Can you please book a flight ticket from DEN to DCA?

ASSISTANT: Sure, can I know your travel dates?

USER: Sure, I need to travel on dates of 03/27 and 03/29.

ASSISTANT: The flight 1006 of Spirit airlines is available on your requested dates with a price of 100 and with 1 connection.

USER: That is fine, please proceed with booking.

ASSISTANT: Allen, your reservation has been done successfully.

USER: Thank you for your help.

ASSISTANT: You are welcome.