You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: I am Jacob Green. I want to book a ticket from DEN to DEN to attend seminar, can you help me?

ASSISTANT: Sure, can I know your preferable dates?

USER: I am departing on 10/16 and return on 10/18.

ASSISTANT: I found a flight 1002 of Spirit airlines matches with your preferences, can I proceed?

USER: Please proceed for booking.

ASSISTANT: Your ticket is booked. Thank you, have a good day.

USER: Thank you for your help.