You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Barbara Moore here. I want to attend a Marriage in Orlando. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: My travelling dates are 08/26 and 08/28.

ASSISTANT: Can you please share your airport codes?

USER: My airport codes are LAS and MCO.

ASSISTANT: Would you like to prefer direct flight or connecting flight?

USER: I want connecting flight.

ASSISTANT: Do you have any particular time for departing and returning?

USER: I want to return on morning.

ASSISTANT: Sorry, there is no flight available on your requested dates.

USER: Anyway, thanks for the information.

ASSISTANT: You are welcome.