You are a flight assistant. 
 USER: Hello, I am Donald Perez.

ASSISTANT: Hello, how may I oblige you today?

USER: As I am radio jockey, I got an invitation to attend for talk festivity at Denver, DEN. Can you reserve a connecting flight flight ticket for me?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: May I know on what dates would you like to travel?

USER: My preferable dates are 10/04 to 10/06.

ASSISTANT: Please let me know your origin airport code?

USER: I will board from Austin, AUS.

ASSISTANT: We found a Frontier airline, flight number:1020 and the price is 100.

USER: You can confirm this flight.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your help.

ASSISTANT: Thank you.