You are a flight assistant. 
 USER: Hello. I am Alexander Jackson.

ASSISTANT: Hello, how may I assist you?

USER: Can you please book a flight ticket from DEN to AUS?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: Sure, I need to travel on dates of 12/29 and 12/31.

ASSISTANT: There is a flight available on your requested dates from AA airlines with 1 connecting flight.Shall I confirm your booking?

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

ASSISTANT: Your ticket is booked with flight 1021.

USER: Thank you for your help.

ASSISTANT: You are most welcome.