You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: Could you please check the flight availability in business class?

ASSISTANT: Sure, I will help you with it. May I know your name?

USER: My name is Anthony Robinson.

ASSISTANT: Please help me with your depart and arrival airport codes.

USER: I am heading to EWR from BOS.

ASSISTANT: Please help me with your preferred travelling dates.

USER: My travelling dates are Dec 27 and Dec 29.

ASSISTANT: Do you need a break in your journey?

USER: Yes, I need a break.

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

USER: No.

ASSISTANT: Please allow me a minute.

USER: Sure.

ASSISTANT: Thank you. We have a connecting flight operated by American Airlines with a fare of 200 only. Shall I book the ticket in this flight?

USER: If it is a business class, please proceed.

ASSISTANT: Sure. Please allow me a minute.

USER: Sure, take your time.

ASSISTANT: Anthony Robinson, I am really sorry to inform you that there are no business class flights being operated on your preferred dates of journey.

USER: Not a problem, thank you for the information.

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