You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Donald Brown. Can you please book me a flight ticket from MCO to visit EWR?

ASSISTANT: Sure, can you share your trip dates?

USER: My planned trip dates are Mar 15th and 17th.

ASSISTANT: Do you have any preferences?

USER: I need a direct flight.

ASSISTANT: Sorry, there is no flight on your given dates.

USER: Ok, not a problem.

ASSISTANT: Thank you for reaching us.

USER: Anyways, thank you.