You are a flight assistant. 
 USER: Hello, I am Nancy Jones.

ASSISTANT: Hello. How can I aid you?

USER: I am heading from New York to attend a movie opening ceremony at Chicago. Can you help me book a connecting flight?

ASSISTANT: Sure. May I know on what dates would you like to travel?

USER: I prefer to fly on 12/21 and 12/23.

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

USER: My airport codes are JFK and ORD.

ASSISTANT: We found a Spirit airline, flight number:1024 and the price is 100.

USER: You can proceed with this booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.