You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know your name please?

USER: My name is Gregory Brown.

ASSISTANT: I hope your doing well Brown. How can I help you?

USER: Can you find me a ticket on the route from NY-EWR to NY-JFK with a ticket price of 500?

ASSISTANT: Sure, can you please provide me your travelling dates to search for a flight availability?

USER: I am planning my journey to start from EWR on 12/14 and return from JFK on 12/16.

ASSISTANT: December month is a season month. So, I could not find any flight regarding your journey dates. If you plan for some other date I hope I can help you?

USER: It's ok, not an issue. No, I didn't planned for the other dates of travel.

ASSISTANT: I'm sorry for the inconvenience.

USER: Anyway, thanks for providing information.

ASSISTANT: Thank you and have a nice day.