You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I want to book a flight ticket from LAX to JFK. Can you find a flight ticket for me?

ASSISTANT: Sure, I will help you. Please help me with your planned travelling dates.

USER: Ok, my planned trip dates are on Feb 20 and return on Feb 22.

ASSISTANT: Please help me with your name.

USER: Yes, I am Michelle Harris.

ASSISTANT: Do you need a break in between your journey?

USER: I need a direct flight.

ASSISTANT: Do you have any other preferences in your journey?

USER: No, thanks for asking.

ASSISTANT: Michelle Harris, I am really sorry to inform you that there are no flights available for your journey.

USER: Ok, not a problem. Thank you for your help.

ASSISTANT: Thank you for reaching us. Have a great time.