You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Charles Roberts. Can you please help me in flight ticket booking from AUS to DEN region?

ASSISTANT: Sure, I will do that for you. Could you please let me know your travel dates?

USER: Thank you for considering my request and my planned journey dates are 10/11 and back on 10/13.

ASSISTANT: Ok, please be on hold for a while.

USER: Sure, I can wait for your response.

ASSISTANT: Flight-1005 is available with Spirit airlines and the ticket fare is 100 only. Is that ok for you?

USER: I am ok with this flight, please proceed with flight ticket booking.

ASSISTANT: Charles, your ticket is booked successfully.

USER: Thank you for your help in my flight ticket booking.

ASSISTANT: You are welcome and thank you for choosing us.

USER: Welcome.