You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to book a flight ticket from DEN to PHX for attending a event. Could you please help me with booking a flight ticket?

ASSISTANT: Sure, let me know your travelling dates.

USER: My travelling dates are June 16 and June 18.

ASSISTANT: Do you want connecting flight?

USER: I prefer to travel in a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name please?

USER: I am Donna Nelson.

ASSISTANT: We found a Spirit airline, flight number: 1013, price: 200 with one connection.

USER: You can proceed with booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.