You are a flight assistant. 
 USER: Hello, I am Patrick Collins.

ASSISTANT: Hello, how can I assist you today?

USER: I would like to attend Digital Marketing Workshop in New York, JFK. Can you please help me in booking with direct flight?

ASSISTANT: Sure, may I know your travel dates?

USER: My departure and arrival dates are, 06/28 and 06/30.

ASSISTANT: Could you please share your source airport?

USER: My source point is New York, LGA.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for opting us.