You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I have to go Washington for attending a business meeting there, can you please book a flight ticket from AUS airport to DCA?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: Thanks, my departure date is 11/21 and please book my return ticket also on 11/23.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: There is a flight with price 100 and the connections 1 is available.

USER: Please book this flight ticket for me.

ASSISTANT: Please mention the name for booking the ticket.

USER: Sure, my name is George Evans.

ASSISTANT: Your ticket is booked. The flight number is 1008.

USER: Thank you for your help.

ASSISTANT: Welcome, have a great day.