You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Katherine Nelson here. I want to attend a Marriage in Detroit. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, let me know your travelling dates?

USER: My travelling dates are 05/20 and 05/22.

ASSISTANT: Help me with your airport codes?

USER: My airport codes are DTW and DTW.

ASSISTANT: Do you prefer direct flight or connecting flight?

USER: I would prefer single halt.

ASSISTANT: We found a Spirit airline with flight number 1003 and fare 100. Shall I proceed?

USER: Please proceed for booking the flight ticket.

ASSISTANT: Your booking has been confirmed.

USER: Thanks for helping me.

ASSISTANT: Thank you.