You are a flight assistant. 
 USER: Hello, I am Melissa Brown.

ASSISTANT: Hello. How can I aid you?

USER: I intend to fly from Atlanta to attend a movie concert at Dallas & Fort Worth. Can you help me book a connecting flight?

ASSISTANT: Sure. Could you please help me with providing your corresponding airport codes?

USER: To reach DFW, I need to start from ATL. They are planned to be on 02/27 and 02/29.

ASSISTANT: We found a AA airline, flight number:1000 and the price is 100.

USER: Book my ticket with this airline.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for picking us.

ASSISTANT: Thank you.