You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Can you please help me in booking a flight ticket from JFK to LAX?

ASSISTANT: Sure, can you share your journey dates?

USER: Sure, my travel dates are from Dec 22 to Dec 24.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight.

ASSISTANT: May I know your name?

USER: Myself Joshua Edwards. I prefer business class for my journey.

ASSISTANT: Sorry, there is no flight on your given preferences.

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

ASSISTANT: Thank you for reaching us.