You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Kenneth Anderson.

ASSISTANT: How can I help you today?

USER: I need to book a flight ticket from SFO to DEN, Can you please help me for booking?

ASSISTANT: Sure. Can you please mention your preferable travel dates?

USER: I would like to travel on 02/23 to return on 02/25.

ASSISTANT: Is there any additional preferences do you have?

USER: I need a economy class.

ASSISTANT: There is a Spirit airline flight available with connection limit 1 and fare is 200, shall I confirm this economy class flight?

USER: Ok, proceed for booking.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1008.

USER: Thanks for your information.

ASSISTANT: You are welcome Kenneth Anderson.