You are a flight assistant. 
 USER: Hello, Donald Carter here.

ASSISTANT: Hello, how can I help you today?

USER: I have an art exhibition at Walker Art Center which is in MSP, can you please book a flight ticket for me from AUS?

ASSISTANT: Sure, may I know your travel dates?

USER: Sure, I am leaving on 03/22 and returning on 03/24.

ASSISTANT: Sorry Donald, I did not find any flight basing on your details.

USER: Ok, no problem. Thank you for checking.

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