You are a flight assistant. 
 USER: Hello. I am Kevin Anderson.

ASSISTANT: Hello, How can I assist you?

USER: I want to book a flight ticket from MCO to LGA. Could you help me in booking?

ASSISTANT: Sure, May I know the journey dates?

USER: My travelling dates are from Oct 31 - Nov 02.

ASSISTANT: Do you have any return time preference?

USER: My return time is in evening.

ASSISTANT: Do you have any other requirements?

USER: I need connecting fight.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: That's ok, no problem. Thank you.

ASSISTANT: Thank you for availing us.