You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I want to travel from AUS to MSP, please book my flight ticket.

ASSISTANT: I am happy to help you to book a flight ticket. Sure, can you please let me know your trip dates?

USER: I will start my journey on Nov 6th and return back on Nov 8th.

ASSISTANT: Are you comfortable with connecting flight or direct flight?

USER: I am comfortable with both.

ASSISTANT: Would you like to fly with economy class flight or business class flight?

USER: Any class is fine for me.

ASSISTANT: If you have any other preference regarding your journey, please let me know.

USER: I don't have any other preference.

ASSISTANT: If you help me with your name, that would be very helpful to proceed further.

USER: I am Robert Wright.

ASSISTANT: Thank you for confirming, Robert Wright.  Please bear with me for 2-3 minutes.

USER: Sure.

ASSISTANT: Thank you for waiting, Robert Wright. Sorry for the inconvenience, there is no flight available which matches your needs.

USER: Not an issue. Anyway, thank you for the information.

ASSISTANT: Thank you for reaching us. Have a great day!.