You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Frank Jackson here.

ASSISTANT: Frank Jackson, how may I aid you?

USER: Can you book a flight ticket in business class for a trip to Minneapolis?

ASSISTANT: Sure, may I know your itinerary dates?

USER: My travel dates are from Nov 19 to Nov 21.

ASSISTANT: Please share your genesis and terminus airport codes.

USER: Yes, my airport codes for boarding the flight are from SFO to MSP.

ASSISTANT: Please give me a moment to check for available flights.

USER: Sure.

ASSISTANT: Do you have any specifications?

USER: I am looking for a single connecting flight.

ASSISTANT: Ok. Southwest airlines with flight 1015 is providing service with a connecting flight and ticket costs you 200 in economy class.

USER: I am looking for a business class.

ASSISTANT: Let me check.

USER: Ok.

ASSISTANT: UA airlines with flight 1008 is providing service with a connecting flight and ticket costs you 400 in business class.

USER: That is fine. You can book it now.

ASSISTANT: Your ticket is confirmed, have a safe and happy journey.

USER: Thank you.

ASSISTANT: Thank you for utilising our services.