You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Can you book a connecting flight in my preferable travel dates Jan, 21 and Jan, 23?

ASSISTANT: Sure, I am here to help you. Could you please share your airport codes?

USER: ATL and MCO are my airport codes.

ASSISTANT: Is there any class preference?

USER: I prefer to business class.

ASSISTANT: May I know your connection limit?

USER: I already mentioned above.

ASSISTANT: May I know your name?

USER: Raymond Lee here.

ASSISTANT: Sorry, there are no flights found on your trip dates.

USER: That's ok, not a problem. Thank you.

ASSISTANT: Thank you for choosing us.