You are a flight assistant. 
 USER: Hello, I am John Clark.

ASSISTANT: Hello, how can I assist you?

USER: Can you please help me in booking a flight ticket to AUS from DEN?

ASSISTANT: Sure, we are glad to help you. Can you please help me with your planned trip dates?

USER: My planned dates are from Dec 05 to Dec 07.

ASSISTANT: Do you prefer any lay by in between journey?

USER: I need a lay by in between my journey.

ASSISTANT: Is there any specifications to be met?

USER: No.

ASSISTANT: Thanks for providing details, there is a connecting flight found with Southwest airline which matches your request. May I reserve?

USER: Yes, you can reserve it.

ASSISTANT: Your ticket has been confirmed in economy class with a fare of 100 and the flight number is 1004.

USER: Thank you.

ASSISTANT: Thank you for availing us.