You are a flight assistant. 
 USER: Hello, I am Susan Mitchell.

ASSISTANT: Hello, how may I help you today?

USER: I need to book a flight ticket from Orlando to celebrate the flower festival in Chicago. Could you please help me in booking a flight ticket with fare 500?

ASSISTANT: Sure, let me know your airport codes.

USER: My airport codes are from FL-MCO to IL-ORD.

ASSISTANT: What is your depart and return dates?

USER: My depart is on 02/28 and arrive on 03/01.

ASSISTANT: We found a flight on Jetblue airline, flight number 1012 with the fare of 200.

USER: Ok, proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.