You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

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

ASSISTANT: Sure, I will help you. Please help me with your planned travelling dates.

USER: Sure, my planned travelling dates are Feb 09 and Feb 11.

ASSISTANT: Please help me with your name.

USER: Sure, my name is Mary Jones.

ASSISTANT: Do you need a direct or connecting flight?

USER: Yes, I prefer direct flight.

ASSISTANT: Do you have any other preferences in your journey?

USER: No.

ASSISTANT: Please allow me a minute.

USER: Ok.

ASSISTANT: Mary Jones, I am really sorry to inform you that there are no flights available for your journey.

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

ASSISTANT: Thank you for reaching us. Have a great time.