You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Susan Mitchell. Can you please book a flight ticket from LAS to MCO?

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

USER: Thank you. I have planned my travel dates as Dec 14 and Dec 16.

ASSISTANT: Do you have any connection limit?

USER: I am looking for single connecting flight.

ASSISTANT: May I know your departure and arrival time?

USER: I would like to return in evening time.

ASSISTANT: Do you have any other requirements?

USER: No, I am ok with any airlines.

ASSISTANT: Ok, please be on hold.

USER: Sure.

ASSISTANT: Sorry, there are no flights in this route as per your travelling details.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: Thank you for reaching us.