You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I need to book a flight ticket from IAD to AUS, Can you please help me for booking?

ASSISTANT: Sure, let me know your planned journey dates?

USER: I would like to travel on 06/01 to return on 06/03.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a connecting flight.

ASSISTANT: Is there any other preferences?

USER: No.

ASSISTANT: Can I know your name?

USER: Sarah Walker here.

ASSISTANT: We found a American airline with flight number 1016 and fare 100 with class is economy. Shall I proceed?

USER: Ok, proceed for booking.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thanks for your information.

ASSISTANT: Thank you for availing us.