You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I have to attend for a seminar in ATL. Can you please book a flight from LAS?

ASSISTANT: Sure, please provide your trip dates.

USER: Sure, my travelling dates are Jan 28 - Jan 30.

ASSISTANT: Do you have any other requirements?

USER: Yes, I need a connecting flight with an business class.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: Thank you for waiting and we have found a flight in economy class with 1 connection in UA airlines and the fare of your flight will be 100. Do you like me to proceed your booking with this flight?

USER: I need an business class. Can you please check with that once?

ASSISTANT: May I know your name?

USER: My name is Nicole Campbell.

ASSISTANT: We have the flight in business class with 1 connection. Shall I proceed with this?

USER: Ok, please proceed.

ASSISTANT: Your ticket is booked in 1009 flight with Hawaiian airlines.

USER: Thank you.

ASSISTANT: Most welcome.