You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: Will you please help me with booking a direct flight for me?

ASSISTANT: Sure, I am here to help you. Please, share me your nearest airport codes.

USER: My preferable airport codes are JFK and LGA.

ASSISTANT: Let me know your travelling dates, please.

USER: My planned travel dates are from Sept 10 to Sept 12.

ASSISTANT: DO you have any specifications?

USER: No, I prefer only direct flight.

ASSISTANT: Can I know your name to proceed further for documentation purpose?

USER: Sure, myself Justin Perez.

ASSISTANT: Sorry, we have not found any flights running on your desired routes.

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

ASSISTANT: Thank you for the information.