You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I support you?

USER: I would like to go to Denver, CO-DEN  to attend for an Inauguration Day. Please book a ticket on 01/20.

ASSISTANT: May I know your source code?

USER: My source code is ORD.

ASSISTANT: Could you please provide your return date?

USER: My return would be on 01/22. I need a direct flight only.

ASSISTANT: We found that there is a flight available with 1 connection.

USER: No problem. Don't confirm it.

ASSISTANT: Ok.

USER: Thank you.

ASSISTANT: Thank you for reaching us.