You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Kenneth Phillips here.

ASSISTANT: How may I assist you today?

USER: Can you please book me a ticket from AUS to MSP?

ASSISTANT: Sure, I can help you in booking flight ticket. May I know your preferable journey dates for booking flight ticket?

USER: Ok, here are my travel dates 12/03 and 12/05.

ASSISTANT: Ok, just give me a moment, I will check flight availability.

USER: Ok, take your time.

ASSISTANT: Sorry for the inconvenience, no flights available as per your requested dates.

USER: No issues, thank you so much for the information.

ASSISTANT: Thank you for reaching us, have a good day.