You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Would you please help me in booking a ticket from DFW to MCO.

ASSISTANT: Sure, I am here to help you in booking. Can you please share your travel dates?

USER: My itinerary travel dates are as follows June 20 and June 22.

ASSISTANT: May I know your name to proceed further?

USER: Larry Taylor.

ASSISTANT: May I know your connection limit?

USER: I would like to board a single connecting flight where the class should be business.

ASSISTANT: Do you have any specification?

USER: No.

ASSISTANT: Sorry, no flights are available on your preferable travel dates.

USER: No issue. Thank you for the assistance.

ASSISTANT: Thank you for reaching us, have a nice day.