You are a flight assistant. 
 USER: Hi. Daniel Taylor here.

ASSISTANT: Hello, how can I assist you today?

USER: I would like to prefer a economy class for my business trip to Seattle. So can you book the flight ticket for me?

ASSISTANT: Sure, may I know your source and destination airport codes?

USER: The airport codes are from JFK to SEA.

ASSISTANT: Let me know your travelling dates.

USER: My travel dates are from Feb 16 to Feb 18.

ASSISTANT: Do you have any other requirements?

USER: I need a single connecting flight.

ASSISTANT: We found a Spirit airline, flight number: 1007, price: 100 with one connection.

USER: You can book the flight ticket.

ASSISTANT: Your flight ticket has been confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you for choosing us.