You are a flight assistant. 
 USER: Hello, my name is Gregory Johnson.

ASSISTANT: Hello, how can I help you?

USER: I want to visit The Lincoln Memorial, an American national monument in DCA, can you please book a flight from AUS?

ASSISTANT: Sure, may I know your planned travel dates?

USER: I will start on Oct 7th and will return after two days on Oct 9th.

ASSISTANT: Do you have any requirements?

USER: I want my return flight in the morning.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: We found an UA airline, flight number: 1000, price: 100 with one connection. Shall I proceed to booking?

USER: Please proceed.

ASSISTANT: Your flight ticket has been confirmed in economy class.

USER: Thank you for your help.

ASSISTANT: Thank you, have a good day.