You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you now?

USER: I want to book a economy class ticket, can you help me with it please?

ASSISTANT: Sure, please share me your planned journey dates?

USER: My travelling dates are Nov 20 and Nov 22.

ASSISTANT: May I know your source and destination airport codes?

USER: My airport codes are SEA and DTW.

ASSISTANT: Please mention your connection limit?

USER: I need a direct flight.

ASSISTANT: Do you have any other requirement?

USER: No.

ASSISTANT: May I know your name please?

USER: My name is Robert Gonzalez.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Thank you for waiting, I found a direct flight 1004 of Spirit Airlines, class is economy and fare is 200. Shall I proceed with booking?

USER: Yes, please.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us, we hope see you again.