You are a flight assistant. 
 USER: Hello, myself Margaret Walker.

ASSISTANT: Hello,. How can I help you?

USER: I am planning to book a flight ticket to DEN from JFK, can you please help me out?

ASSISTANT: Sure. Let me know your travelling dates?

USER: Sure, my planned travelling dates are Nov 03 and Nov 05.

ASSISTANT: Do you prefer direct flight or connecting flight?

USER: Yes, I need a direct flight.

ASSISTANT: Sorry, no flights found for your travelling dates.

USER: It's ok, thank you for the information.

ASSISTANT: Thanks.