You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I have planned to book a ticket from LAS to MCO, can you assist me in booking my ticket?

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

USER: I have planned my trip om Feb 15th, return 17th.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I need connecting flight.

ASSISTANT: May I know your good name please?

USER: Linda Young.

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

USER: No problem, thank you for searching.

ASSISTANT: Thank you for reaching us.