You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I need to travel Detroit, can you reserve flight ticket from AUS and DTW?

ASSISTANT: Sure, I will help you. Please help me with your name.

USER: Myself Steven Nelson.

ASSISTANT: Please help me with your planning travel dates.

USER: My travelling dates are Sept,24 and Sept,26.

ASSISTANT: Do you need a direct or connecting flight?

USER: I need a single connection for my journey.

ASSISTANT: Please help me with your preferred class to fly.

USER: I need an economy class with normal-cost flight.

ASSISTANT: May I know if you have any other preferences in your journey please?

USER: No.

ASSISTANT: Steven Nelson, I am really sorry to inform you that there are no flights available for your journey.

USER: Oh! Sad to hear that. Anyway, I will find another alternative to complete my journey.

ASSISTANT: Thank you for reaching us. Have a great time.

USER: Thank you for the information.