You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Dennis Evans.

ASSISTANT: Dennis Evans, how may I aid you?

USER: I am planning to celebrate the flower festival in DCA, can you please help me in booking a flight ticket from AUS?

ASSISTANT: Sure, please provide your trip dates.

USER: My trip dates are Aug 24th and Aug 26th.

ASSISTANT: Do you have any specifications?

USER: The depart time should be afternoon.

ASSISTANT: Do you have any other preferences?

USER: I need a connecting flight.

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: Flight-1019 is available in AA airlines and the ticket fare is 200 only. Can I book the ticket for you?

USER: Please proceed with the booking.

ASSISTANT: Your ticket is booked successfully. Flight departure time is at 14:00PM.

USER: Thank you.

ASSISTANT: You are welcome.