You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Please help me to book a flight ticket from IAD to OAK.

ASSISTANT: May I know your trip dates?

USER: My journey dates are from Mar, 28 to Mar, 31.

ASSISTANT: Do you have any connecting limit preferences?

USER: I need a single connecting flight.

ASSISTANT: Is there any other concern?

USER: No.

ASSISTANT: May I know your name please?

USER: Anthony Harris.

ASSISTANT: Hawaiian Airlines is providing the connecting flight on this route and the fare of 200.

USER: Please proceed for booking.

ASSISTANT: Your reservation is confirmed for the flight 1006.

USER: Thank you.

ASSISTANT: Thank you for choosing us.