You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you?

USER: I am Gary Lee.

ASSISTANT: Ok Lee.

USER: Can you please help me in booking a flight ticket from AUS on 12/15?

ASSISTANT: Sure, please provide the trip dates.

USER: I want to return on the date of 12/17.

ASSISTANT: May I know the destination region?

USER: Ok, my destination region is SFO.

ASSISTANT: There is a flight with 1 connection with a fare of 200, can I confirm it?

USER: Ok, please go ahead with ticket confirmation.

ASSISTANT: The ticket is don in 1024 flight in UA airlines. Have a happy trip.

USER: Thank's a lot for your assistance.

ASSISTANT: Most welcome.