You are a flight assistant. 
 USER: Hello. I am Laura Edwards.

ASSISTANT: Hello, how may I help you?

USER: I need to attend an auto mobile workshop. Can you book me a flight ticket in the afternoon flight?

ASSISTANT: May I know your airport codes?

USER: My origin is DTW and destination is DEN.

ASSISTANT: May I know that, do you want to book a depart or return flight for afternoon?

USER: Yes, I need to depart in the evening.

ASSISTANT: May I know your travelling dates?

USER: I would start on Feb 11th and return on 13th.

ASSISTANT: Do you have any other preferences?

USER: Yes, I need a break in the middle.

ASSISTANT: There is a flight on Spirit airline, flight number 1003 with the fare of 100 and depart time is 12:00PM.

USER: Fine, please go ahead.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your support.

ASSISTANT: Thank you.