You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Donald Lee.

ASSISTANT: How can I assist you now?

USER: Can you book a flight ticket from MCO to AUS?

ASSISTANT: Sure, I am here to help you. Could you please share your planned journey dates?

USER: Thank you, my travel dates are 09/24 and 09/26.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight.

ASSISTANT: Thank you for sharing the details. Unfortunately, there were no flights available that matches your requirements.

USER: It's ok, no problem. Thank you.

ASSISTANT: Thank you for  reaching us.