You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I support you today?

USER: Please help me to book a flight ticket from MCO to LAX.

ASSISTANT: Sure, we are here to make your journey comfort. Would you like to travel in a connecting flight or a direct flight?

USER: I need a direct flight to fly.

ASSISTANT: Could you please share your departure and arrival dates to proceed further?

USER: My journey dates are from Dec, 16 to Dec, 18.

ASSISTANT: Kindly share your name please.

USER: Anna Lewis.

ASSISTANT: Is there any other preferences that you would like to add before booking?

USER: No.

ASSISTANT: Ok, please wait a moment I'll search best flight for you.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry to inform you that there are no flights found on your requested dates.

USER: Thank you for your information.

ASSISTANT: Thank you for approaching us.