You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you now?

USER: I want to attend a Seminar in New York. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, I will help you with that. Can I have your travel dates please?

USER: My travelling dates are Mar 24 and Mar 26.

ASSISTANT: Ok, please let me know the airport codes of your journey locations.

USER: My airport codes are OAK and EWR.

ASSISTANT: Do you prefer any class to travel?

USER: I am comfortable with any class.

ASSISTANT: Can I have your good name please?

USER: My name is Larry Turner.

ASSISTANT: Are you looking for any connecting flight?

USER: I prefer nonstop flight.

ASSISTANT: Sorry Larry Turner, no direct flight is available to you on your dates.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for choosing us, have a good day.