You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: Book a ticket for me from AUS to CLT, to visit the Billy Graham Library.

ASSISTANT: Could you tell us your planned dates of journey?

USER: Sure, my trip dates are from 02/21 and 02/23.

ASSISTANT: May I know your good name please?

USER: Sure, myself Virginia Mitchell.

ASSISTANT: I found a flight with 2 connection limit, shall I book?

USER: I need a stop in between the source and destination.

ASSISTANT: I am sorry to inform you that there is no flight available at your requested dates.

USER: It's ok, thanks for checking.

ASSISTANT: Thank you, have a nice day.