You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am Shirley Thompson want to visit Austin, can you book a ticket from ATL to AUS?

ASSISTANT: May I know your desired travel dates please?

USER: Sure, my travelling dates will be 05/17 and 05/19.

ASSISTANT: Please wait a while.

USER: Please check for the direct flight.

ASSISTANT: There is no flight available on your desired travel dates.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us. Have a nice day.