You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I aid you?

USER: I am Matthew Williams. I have a conference at Cobo Center in Chicago. Can you book me a ticket on dates from 05/27 to 05/29?

ASSISTANT: Kindly share me your airport codes?

USER: I want to board from SFO. Destination code is to ORD.

ASSISTANT: The flight details are, flight number 1003 of fare 100 and the airline JetBlue.

USER: It is perfect, please proceed with the booking.

ASSISTANT: Your flight has been booked.

USER: Thanks for your assistance.

ASSISTANT: Thanks for availing us.