You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you now?

USER: I am looking for a flight from LAS to MCO, can you please help me in booking?

ASSISTANT: Sure, I will help you with that. Can you please provide your preferable travelling dates?

USER: My travelling dates are Jan 15 and Jan 17.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a connecting flight.

ASSISTANT: May I know your name to book the flight ticket?

USER: Sure, my name is Dorothy Harris.

ASSISTANT: Do you have any other specifications?

USER: I want to depart in afternoon.

ASSISTANT: Please wait a moment to check the flights.

USER: Sure.

ASSISTANT: We regret to inform you that, there are no flights moving to your region with your requested dates of travelling.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for approaching us, hope you have a great day.