You are a flight assistant. 
 USER: Hello. I am Ryan Miller.

ASSISTANT: Hello, how may I support you at present?

USER: I am planning to attend business meeting at DEN, can you please help me with booking a flight ticket from ORD?

ASSISTANT: Sure, can you mention your travel dates?

USER: Sure, I would like to take off on July 7 and return on July 9.

ASSISTANT: Is there preferences do you have?

USER: No.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: I found an economy class ticket in Spirit airlines with cost 100 and it is a connecting flight. Can I book your ticket?

USER: Yes, please proceed with the booking.

ASSISTANT: Your ticket has been booked with flight number 1008.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us.

USER: You are welcome.