You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I would like to book a ticket from DEN to DFW, can you please help me out?

ASSISTANT: Sure, can you please let me know your trip dates?

USER: I am travelling on these dates July 21st and 23rd.

ASSISTANT: Do you have any connection limit preference?

USER: I need single connected flight.

ASSISTANT: Do you have any other specifications?

USER: I don't have any other preferences.

ASSISTANT: Could you help me with your name please?

USER: Justin Edwards here.

ASSISTANT: Spirit Airlines is providing a connecting flight with 1026 flight number and airfare is 200. Shall I proceed with this flight?

USER: Ok, you can proceed.

ASSISTANT: For a economy class your ticket is booked.

USER: Thank you for your services.

ASSISTANT: Thank you for reaching us.