You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Kevin Brown. Can you book a ticket from LAS to MCO?

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

USER: My travelling dates are on Feb 06 and Feb 08.

ASSISTANT: Do you want connecting flight?

USER: Yes.

ASSISTANT: May I know your return time?

USER: My return time is evening.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: Thank you for informing me.

ASSISTANT: Thank you for choosing us.