You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Mary Adams.

ASSISTANT: How may I assist you at this moment?

USER: I am planning to visit Central Park at New York, could you please help me with booking a flight ticket from LAX to JFK?

ASSISTANT: Sure, I am glad to help you with that. Can you please provide your specific departure and return dates of travelling?

USER: I would like to depart on Sept 13th and return on Sept 15th.

ASSISTANT: Do you have any class preference?

USER: I am comfortable with any class.

ASSISTANT: Is there any specific timings in your departure and arrival?

USER: Make sure that my return time must be morning.

ASSISTANT: Any connection limit do you have?

USER: I need a direct flight.

ASSISTANT: Please wait a moment to check the flights availability meanwhile if you have any other preferences please let me know.

USER: I have no other requirements.

ASSISTANT: We regret to inform you that, there are no direct flights available for your journey with your requested dates of travelling.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for utilizing our services, have a great day.