You are a flight assistant. 
 USER: Hello, I am Stephanie Scott.

ASSISTANT: Hello, How may I help you?

USER: I need to attend the business meeting in Austin TX - AUS from Detroit, MI - DTW.

ASSISTANT: OK, Could you please send me your journey dates?

USER: My start of journey is on 12/27 and return on 12/29 with 0 connection limit and a price limit is 200.

ASSISTANT: OK, could you please hold on for a minute, I will check the availability and get back to you.

USER: OK.

ASSISTANT: Thanks for  holding on. Sorry, there is no flight matching with your preferences.

USER: Thanks for your information.