You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How exactly I can serve you the best today?

USER: I want to book a flight ticket to attend an event from DC. Can you help me?

ASSISTANT: Sure, we are glad to assist you in booking. Could you please share your planned travelling dates to proceed further?

USER: July 01st and 03rd are my travelling dates.

ASSISTANT: May I know your boarding and landing airport codes?

USER: DCA and AUS are my airport codes.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I need a connecting flight.

ASSISTANT: May I know your name please?

USER: William Smith.

ASSISTANT: Is there any other preferences that you would like to add before booking?

USER: No more.

ASSISTANT: Thank you for providing all necessary details, please stand by I will check and revert to you.

USER: You can reserve it.

ASSISTANT:  Thank you for waiting, we found an economy class ticket providing by AA airline with the flight number-1018 and the fare 100. Shall I book the ticket?

USER:  Yes, You can.

ASSISTANT: Your flight booking is confirmed and ticket has been emailed.

USER: Thank you.

ASSISTANT: Thank you for approaching us.