You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I assist you today?

USER: I need a direct flight to travel from TX - AUS to attend my Friend's marriage. Can you aid me?

ASSISTANT: Sure, please forward your travelling dates?

USER: I will fly on 03/07 and return on 03/09.

ASSISTANT: Where are you travelling to?

USER: My landing airport code is TX - DFW.

ASSISTANT: May I know your good name please?

USER: I am Frank Young.

ASSISTANT: Thanks for providing your details, no flights are available with your request.

USER: Ok, thanks for your response.

ASSISTANT: Thanks for opting us.