You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you at this moment?

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

ASSISTANT: Sure, I will help you with that. Can you please mention your preferable travel dates?

USER: I would like to travel on 10/04 to return on 10/06.

ASSISTANT: May I know your name for further process?

USER: Alexander Taylor.

ASSISTANT: Do you need any specific depart and arrival time for this trip?

USER: No.

ASSISTANT: Do you have any another specifications?

USER: Yes, I need a economy class.

ASSISTANT: Ok, please hold on a moment.

USER: Sure.

ASSISTANT: 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 1015.

USER: Thanks for your information.

ASSISTANT: You are welcome Alexander Taylor.