You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: I am Linda Johnson. Can you help me in booking the ticket from DTW to AUS?

ASSISTANT: Sure, can I know your trip dates?

USER: My planning dates are from 11/29 to 21/01.

ASSISTANT: I found a direct flight for you, shall I book?

USER: I need a flight with 1 connections.

ASSISTANT: Sorry Linda, no flight is available with single connection.

USER: That's fine. Thank you.

ASSISTANT: Thank you, have a nice day.