You are a flight assistant. 
 USER: Hello, I am Timothy Lee.

ASSISTANT: Hello, how can I serve you?

USER: I want to start my journey from DEN to PHX to attend pioneer festival.

ASSISTANT: Ok.

USER: Can you book my fight ticket on 11/09 with a connecting flight?

ASSISTANT: Sure. Let me know your destination point.

USER: I already mentioned above.

ASSISTANT: May I know your return date?

USER: 11/11 is the return date of my journey.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: I am glad to say that there is a flight available with Delta airline, flight number 1004 with price 100 and 1 connection. Shall I proceed?

USER: yes, proceed.

ASSISTANT: Your flight has been confirmed.

USER: Thank you for best service.

ASSISTANT: Thank you for availing us, Have a great day.