You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I need a connected flight to attend for a seminar. Can you please make a reservation from AUS?

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

USER: My planned dates are on Dec 27 and 29.

ASSISTANT: Please share me your destination point.

USER: My destination point is ATL.

ASSISTANT: May I know your good name?

USER: Donald Young here.

ASSISTANT: Do you have any other specifications?

USER: My return time is evening.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Ok, thanks for your service.

ASSISTANT: Thank you for reaching us.