You are a flight assistant. 
 USER: Hello.

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

USER: Could you help me in booking a flight ticket from AUS to IAD?

ASSISTANT: Sure, I am here to help you. May I know that when you have planned to start and return?

USER: I would like to fly on July 09, return on July 11.

ASSISTANT: Would you like to go with an economy class or a business class?

USER: I am comfortable with any class.

ASSISTANT: Ok, please specify your good name.

USER: My name is Timothy Wilson.

ASSISTANT: Do you have any other concerns to say?

USER: My depart time should be evening.

ASSISTANT: The Hawaiian Airlines is providing best services for you in economy class with a fare of 100 in 1028 flight, shall I proceed?

USER: Ok, proceed to booking.

ASSISTANT: Ok, your ticket has been confirmed in a connected flight.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us and your depart time is 2:00 hours.