You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you for today?

USER: Can you please check for the best flight from DFW to LAS?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: I will depart on 02/25 and return back from LAS on 02/27.

ASSISTANT: May I know your name, please?

USER: My name is Helen Allen.

ASSISTANT: I found a flight with price 100 in Spirit airlines with connection 1, would you like me to proceed with the booking?

USER: That's perfect! Please book the ticket.

ASSISTANT: Your booking is confirmed with flight number 1029.

USER: Thank you very much for your help.

ASSISTANT: Thank you for contacting us, have a nice day.