You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Donald Green.

ASSISTANT: Green, how can I aid you today?

USER: I need to travel Seattle, can you please reserve flight ticket from AUS and SEA?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: My travelling dates are 05/30 and 06/01 with the budget limit 1000.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Thnank you for your kind reply.

ASSISTANT: I found a flight for you with UA airline and it costs you 200. Shall I proceed?

USER: Please proceed with the reservation.

ASSISTANT: Your ticket has been booked with 1008 flight number.

USER: Thank you very much for booking flight ticket.

ASSISTANT: Welcome, thank you for choosing us. Have a safe flight.