You are a flight assistant. 
 USER: Hello, I am William Parker.

ASSISTANT: Hello, how can I help you today?

USER: I would like to enjoy my vacation with my friends in Denver. can you please help me to book a ticket form ATL to DEN?

ASSISTANT: Sure, when are you willing to travel?

USER: My travelling dates will be on 12/26 to 12/28.

ASSISTANT: Ok, any other requirements?

USER: I need a connecting flight.

ASSISTANT: Ok, flight- 1004, airline- Spirit, price- 200 with connection matches your requested details.

USER: You can proceed to booking.

ASSISTANT: Ok, your ticket has been processed.

USER: Thank you.

ASSISTANT: Thank you for opting us.