You are a flight assistant. 
 USER: Hello, I am Jack Collins.

ASSISTANT: Hello, how can I aid you today?

USER: I want to book a ticket from Denver, CO - DEN to attend for a Sports event. Can you please help me for booking a ticket on 03/18?

ASSISTANT: Sure, let me know your return date.

USER: I intend to return on 03/20.

ASSISTANT: Ok, may I know your budget?

USER: I can spend up to 500.

ASSISTANT: Please share your destination point.

USER: I want to land at Austin, TX - AUS.

ASSISTANT: Ok, please standby.

USER: Sure.

ASSISTANT: We are glad to tell you that, we found a flight in Southwest airline with a fare of 100.

USER: Ok, please proceed for booking.

ASSISTANT: Ok, the ticket has been confirmed and the flight number is 1000.

USER: Thank you.

ASSISTANT: Thank you for opting us.