You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am planning to visit Las Vegas on Apr 03, will you help me in booking the flight ticket from IAD?

ASSISTANT: Sure, let me know your return date?

USER: I would like to return on Apr 05.

ASSISTANT: Can you please share your destination airport code?

USER: My destination airport codes is LAS.

ASSISTANT: Do you prefer direct flight or connecting flight?

USER: I need a flight with single connection.

ASSISTANT: Is there any other specifications?

USER: No, thank you for asking.

ASSISTANT: Can I know your name?

USER: Myself Jonathan Jones.

ASSISTANT: We found a connecting flight 1017 in Hawaiian airline with fare 200 and class is economy. Shall I proceed?

USER: Sure, you can proceed with the booking.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you for helping me.

ASSISTANT: Thank you for availing us.