You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you at this moment?

USER: I am planning to visit Washington, will you help me in booking the flight ticket from PHX to IAD?

ASSISTANT: Sure, I will aid you with that. Could you please mention your preferable travel dates?

USER: My preferable journey dates are Aug 25 and Aug 27.

ASSISTANT: May I know your name for further process?

USER: Myself Robert Clark.

ASSISTANT: Do you have any preferences regarding timings of your journey?

USER: I need a flight with single connection.

ASSISTANT: Do you have any another specifications?

USER: No, thank you for asking.

ASSISTANT: Ok, please hold on a moment.

USER: Ok, I will wait.

ASSISTANT: Hawaiian airline flight available with connection limit 1 and fare is 200, shall I confirm this economy class flight?

USER: Sure, you can proceed with the booking.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1021.

USER: Thank you for helping me in booking the flight ticket.

ASSISTANT: You are welcome Robert Clark.