You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I need you to book a flight ticket from ATL to LAX. Please help me.

ASSISTANT: Sure, I will help you. When would you like to plan your journey?

USER: November 26 and 28 are my planned travelling dates.

ASSISTANT: Can I have your good name please?

USER: My name is Michelle Parker.

ASSISTANT: May I know your connection preference?

USER: I need a break in my journey.

ASSISTANT: Do you have any other specifications?

USER: I would like to fly in a business class airlines.

ASSISTANT: Please hold on a moment.

USER: Sure, I will wait.

ASSISTANT: Michelle Parker, no flights has been found on your specifications.

USER: That's ok. Thank you.

ASSISTANT: Thank you for reaching us.