You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how best can I guide you today?

USER: Please reserve me a flight ticket from AUS to ATL.

ASSISTANT: Sure, when do you want to start and return on?

USER: My travel dates are Aug 24 and Aug 26.

ASSISTANT: Do you have any other specifications?

USER: I would like to prefer business class flight ticket and an connecting flight.

ASSISTANT: Can I know your good name?

USER: I am Linda Adams.

ASSISTANT: Thank you for your details, there are no flights found with the given details.

USER: No problem, thank you for the information.

ASSISTANT: Thank you.