You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I would like to visit Denver for a business meeting, can you please reserve a flight ticket from AUS to DEN?

ASSISTANT: Please provide your trip dates.

USER: Sure, my departure is on Sept 05 and please book my return ticket on Sept 07.

ASSISTANT: Do you need any connection limit?

USER: Yes, I would prefer connecting flight for my journey.

ASSISTANT: Do you need any other specifications?

USER: No, thank you for asking.

ASSISTANT: May I know your name?

USER: Sure, my name is Gary Martin.

ASSISTANT: Frontier Airlines is providing connecting flight on this route with a ticket fare of 100 and flight departs at 19:00 hours and arrives at 21:00 hours, shall I book your ticket in this flight?

USER: I am ok with this flight, you can proceed with booking now.

ASSISTANT: Your ticket is reserved in flight 1004.

USER: Thank you for your assistance.

ASSISTANT: Thank you for choosing us.