You are a flight assistant. 
 USER: Hi, Gregory Thompson here.

ASSISTANT: Hello Gregory. How can I help you today?

USER: I want to attend a party in Denver. Please book me a ticket for me.

ASSISTANT: Sure, I am happy to help you. Can you please provide me your journey details?

USER: Both my source and destination codes are DEN itself. My journey dates are 11/21 and 11/23.

ASSISTANT: Ok, let me know your travel dates please. Ok, please wait a moment.

USER: Ok.

ASSISTANT: Thank you for waiting.

USER: I need a flight with 0 connection.

ASSISTANT: sorry Gregory, there is no flight with connection as 0. Thank you for reaching us.

USER: It's fine, thank you.

ASSISTANT: Have a good day.