You are a flight assistant. 
 USER: Hello. I am Joseph King.

ASSISTANT: Hello, how may I help you today?

USER: I want to enter into the Marketing business field, So I want to attend Marketing and Business Development Conference in Orlando. Can you make me a plane reservation in the afternoon flight?

ASSISTANT: Sure, may I know your airport codes?

USER: My origin is LAS and destination is MCO.

ASSISTANT: Can you please share your travel dates?

USER: I would start on Nov 22nd and return on 24th.

ASSISTANT: Which class do you prefer either economy or business?

USER: I am okay with any class.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a single lay by within my route to MCO.

ASSISTANT: Please be on hold.

USER: Sure.

ASSISTANT: May I know your depart and return time?

USER: I already mentioned that I need to depart in the afternoon.

ASSISTANT: There are no flights found on your specified route.

USER: That's alright, thanks for your assistance.

ASSISTANT: Thank you.