You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I would like to travel from AUS to IAD, to attend a meeting. Could you help me in booking a ticket for me?

ASSISTANT: Sure, may I know your travelling dates?

USER: My preferable dates are from 02/20 till 02/22.

ASSISTANT: Ok, wait a moment,.

USER: Make sure that connection limit should be 1, and price within 200. Ok.

ASSISTANT: As per your request flight has found for you. Shall I proceed to book a flight?

USER: Please, proceed it for me.

ASSISTANT: May I know your name?

USER: Myself Eric Harris.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.