You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I am Elizabeth Martin. I would like to visit Library of Congress to collect some information from old Newspapers at Washington, which helps me to write an Article about corruption. Will you help me to book a connecting flight?

ASSISTANT: Sure, please share me your planned travel dates.

USER: Sure, my planned travel dates are from 12/31 to 01/02.

ASSISTANT: May I know your source and destination codes?

USER: My boarding is from New York, NY - EWR. My landing airport code is DC - DCA.

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

USER: Sure.

ASSISTANT: We are glad to say that, we found an airline: Spirit, flight number: 1006 and price is 100. Shall I proceed to booking?

USER: You can proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for opting us.