You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Please help me in booking flight ticket from PHX to DCA to attend meeting.

ASSISTANT: Sure, let me know your travelling dates.

USER: My trip dates are Aug 19 to Aug 21.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name please?

USER: William Garcia.

ASSISTANT: We found a Hawaiian airline, flight number: 1002, price: 100, it is a direct flight.

USER: You can proceed.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.