You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Please book a ticket from MCO to BOS to attend Board meeting.

ASSISTANT: Sure, can you share your travelling dates?

USER: My travelling dates are Aug 17 and Aug 19.

ASSISTANT: Do you have any preferences?

USER: I prefer economy class.

ASSISTANT: May I know your name?

USER: I am David Garcia.

ASSISTANT: There is a connecting flight with number 1004 in airline Southwest, the fare is 200 in economy class. Can I book it?

USER: Ok, please proceed.

ASSISTANT: Your ticket is reserved.

USER: Thank you.

ASSISTANT: Thank you for opting us.