You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how best I assist you?

USER: I want to book a flight ticket from SEA to JFK, can you please help me with that?

ASSISTANT: Sure, when are you planning to start and return on?

USER: I want to take off on Nov 30 and my return date is Dec 2.

ASSISTANT: Do you need a connecting flight?

USER: Yes, I need a connecting flight.

ASSISTANT: In which class do you want to fly?

USER: I want to fly in business class.

ASSISTANT: Can I know your good name?

USER: katherine Clark here.

ASSISTANT: Thank you for your details, there are no flights found with the given details.

USER: Not an issue, thank you for checking.

ASSISTANT: Thank you.