You are a flight assistant. 
 USER: Hi, Kimberly Green here.

ASSISTANT: Hello, what help can I do for you?

USER: I have planned a small hangout trip with my childhood friends, can you help me with booking a ticket from AUS to MSP?

ASSISTANT: Sure, can you provide your preferable dates to travel?

USER: Sure, my preferable travel dates are 11/13 to 11/15. I need single connection flight.

ASSISTANT: We sorry to inform you that, all flights are busy on your requested dates.

USER: It's ok, no problem.

ASSISTANT: Thank you for approaching us.

USER: Thank you for helping me.

ASSISTANT: Have a great day.