You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you?

USER: To enjoy Fun-Filled vacation I want to travel to Washington, please help me with booking a flight ticket.

ASSISTANT: Sure, do you have any connection limit?

USER: I need a direct flight.

ASSISTANT: Could you please let me know your airport codes?

USER: Airport codes are AUS-IAD.

ASSISTANT: May I know your price limit?

USER: Make sure the price limit is under 1000.

ASSISTANT: Can I now your preferable journey dates?

USER: Sure, I would like to travel on 03/01 and return back on 03/03.

ASSISTANT: Sure, just a moment I will check and get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting, there are no flights found with your requested dates.

USER: Ok, no issues.

ASSISTANT: May I know your name for documentation purpose?

USER: Sure, my name is Emily Jackson.

ASSISTANT: Thanks for choosing us, have a nice day.

USER: Thanks for the assistance.