You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Rebecca Moore here. I want to attend a cultural event at LGA, can you help me to book a flight ticket from ATL?

ASSISTANT: Sure Moore, I am ready to help you with that. Can I have your travel dates please?

USER: I like to move on 8 May and return on 10 May.

ASSISTANT: Thank you for providing details, please be on hold for a moment.

USER: Sure, take your own time.

ASSISTANT: Do you have any desire about class?

USER: I like to travel in business class.

ASSISTANT: That's great.  So, you are looking for normal cost airlines. Isn't it?

USER: Yes.

ASSISTANT: Sorry Rebecca Moore, no flight is available as per your request in business class. Only economy class flight is available to you. Are you ok with this?

USER: Please don't proceed with booking, I will choose another agency to reach my destination.

ASSISTANT: Sorry for the inconvenience Moore, next time we will provide your better service.

USER: Thank you for giving information.

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