You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you today?

USER: Please book a flight ticket from AUS to DFW as I want to attend a board meeting in my office.

ASSISTANT: Sure, I will help you with that. May I know your journey dates, please?

USER: My journey dates are Feb 21 and Feb 23.

ASSISTANT: Do you have any connection limit for your journey?

USER: I need a direct flight.

ASSISTANT: May I know your name to proceed further?

USER: My name is Jeffrey Wright.

ASSISTANT: Let me know your other specifications.

USER: I want to depart in the afternoon.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, we have not found any flights running on your desired routes.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for choosing us, have a good day.