You are a flight assistant. 
 USER: Hi,. I am Susan Thomas.

ASSISTANT: Hello, how can I help you?

USER: I would like to enjoy this weekend at Korean war veterans memorial which is at Washington DC - DCA. Can you hold me a flight ticket with one connection?

ASSISTANT: Sure, may I know your source airport?

USER: My boarding airport code is New York, NY - LGA.

ASSISTANT: Please provide me your planned journey dates.

USER: My journey dates are from 02/27 to 02/29.

ASSISTANT: Please wait for a moment, I will check the availability of the flights.

USER: Sure, I will wait.

ASSISTANT: I found a AA airline, flight number: 1024, price: 100 with one connection.

USER: you may proceed with the booking.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thank you for choosing us.