You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Myself Lisa Smith. I want to travel from OAK to MCO, can you please help me in booking the ticket?

ASSISTANT: Sure, I am here to help you out. Please send me your trip dates.

USER: My trip dates are from 10/31 to 11/02.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Ok, take your time.

ASSISTANT: Sorry Lisa, there are no flights available on your requested dates.

USER: Ok no problem, thank you for the information.

ASSISTANT: Welcome, thank you for choosing us. Have a great day.

USER: Have a great day.