You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: Myself Kathleen Brown. I am planning to meet my friend at Dallas, will you help me in booking the flight ticket from DEN to DFW?

ASSISTANT: Kindly, mention your trip dates.

USER: My travelling dates are Jan 31 and Feb 02. I need a flight with single connection.

ASSISTANT: Which class do you prefer either economy or business?

USER: I am comfortable with any class.

ASSISTANT: How much can you afford for flight ticket?

USER: I can afford up to 500.

ASSISTANT: We found a connecting flight of fare 200 with airline Spirit and number 1016. Can I proceed?

USER: Sure, you can proceed with the booking.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you for your help.

ASSISTANT: Thank you.