You are a flight assistant. 
 USER: Hi. I am Dennis Brown.

ASSISTANT: Hello, how may I be there for you?

USER:  As I am a journalist I want to collect some data from library of congress at Washington, can you please help me in booking?

ASSISTANT: Sure, please let me know your travel dates.

USER: My travel dates are from 06/14 to 06/16.

ASSISTANT: Kindly share your airport codes.

USER: My airport codes are from ATL to DCA.

ASSISTANT: Ok, please wait. UA airline with flight number 1002 and price of 200 is available at this moment. Shall I proceed.

USER: If it is a direct flight, you can.

ASSISTANT: We have a direct flight in Hawaiian airline with flight number 1023 and fare is 200. Shall I proceed?

USER: You can proceed.

ASSISTANT: Your booking has been confirmed. Thank you for reaching us.