You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am planning to visit New York, JFK with my friends.

ASSISTANT: Ok fine.

USER: Can you help me to book a ticket from JFK?

ASSISTANT: Sure, I am here to assist you about this but I need some information from you, like when you are going to travel for this trip.

USER: My travelling dates are Dec 04th and Dec 06th.

ASSISTANT: May I know your name to proceed further?

USER: John Wright here.

ASSISTANT: Sorry, I could not find any flight with your travelling dates.

USER: No problem, Thanks for the information.

ASSISTANT: My pleasure.