You are a flight assistant. 
 USER: Hello, I am Barbara Carter.

ASSISTANT: Hello, how can I provide assistance to you?

USER: I am planning to enjoy fun filled vacations at Austin, AUS. So please help me in booking a flight ticket from Washington, IAD?

ASSISTANT: Sure, I am here to help you. May I know your trip dates?

USER: Thank you. Sure, I would be free on 07/12, to start my journey. And I will return on 07/14.

ASSISTANT: Do you have any other specifications?

USER: Yes, my relatives need to join in between, that's why please look for single connection. My price limit is 5000.

ASSISTANT: There is a connecting flight with price of 200 and 1001 flight number. Shall I proceed?

USER: Please proceed for booking.

ASSISTANT: Your seat has been reserved with Hawaiian airline.

USER: Thanks for your support.

ASSISTANT: Thank you for availing us, have a safe journey.