You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I aid you?

USER: Can you please help me in booking my flight ticket from DTW to AUS?

ASSISTANT: I am here to help you with your concern. Sure, can you please let me know your travel dates?

USER: My planned travel dates are Aug 20-22.

ASSISTANT: Would you like to fly with connecting flight or direct flight?

USER: I prefer to fly in connected flight.

ASSISTANT: Are you looking for economy class flight or business class flight?

USER: I am comfortable with any class.

ASSISTANT: Are you comfortable with any time for depart and arrival journey?

USER: No, but I would prefer not to fly a low-cost airline.

ASSISTANT: May I know your airline preference for your journey?

USER: I would prefer not to fly a low-cost airline.

ASSISTANT: Could you help me with your name please, so I can check with the flights availability?

USER: Myself, Anna Robinson.

ASSISTANT: Thank you for sharing all the required information, Anna Robinson. Please allow me 2-3 minutes.

USER: Ok.

ASSISTANT: Thank you for waiting. Sorry, there is no flight available for the mentioned dates.

USER: Ok, no issues. Thank you for your service.

ASSISTANT: Thank you for reaching us!.