You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you?

USER: I need direct flight to AUS, can you please check whether any reservation availability is there or not?

ASSISTANT: Sure, may I know your preferable travel dates?

USER: Sure, I would like to travel on these dates that is from 05/26 to 05/28.

ASSISTANT: Can you please share your source airport code?

USER: Sure, my source code is DTW.

ASSISTANT: Sorry for the inconvenience, there is no flight available on your requested dates. May I know your good name please?

USER: My name is Frank Taylor. That's ok, thank you.

ASSISTANT: You are most welcome.