You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be your helping hand today?

USER: Can you please help me to book a flight in business class to reach New York?

ASSISTANT: Sure, I am glad to help you for booking.

USER: Thank you for accepting my request.

ASSISTANT: Is there any class preference?

USER: I have already mentioned.

ASSISTANT: Can you please mention your travelling airport codes?

USER: Sure, my airport codes are MSP - JFK.

ASSISTANT: On what dates, you are willing to travel?

USER: My planned dates are 21st and 23rd of March.

ASSISTANT: Can I have your good name please?

USER: Sure, my name is Elizabeth Taylor.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Sorry to notify you that, there were no flights found based on your specified details.

USER: No issues, thank you for informing me.

ASSISTANT: Thank you for opting us.