You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Gregory King. I have planned to attend my friend's marriage in Chicago. Can you please book a flight ticket from CO-DEN to IL-ORD?

ASSISTANT: Can I know travel dates?

USER: My travelling dates will be on 01/27 and 01/29.

ASSISTANT: Give me a minute, let me check the details.

USER: Sure.

ASSISTANT: The flight 1008 of Southwest airlines of price 100 and with 1 connection is available on your requested dates. Shall I book the ticket?

USER: But I want connection as 0. Please verify that.

ASSISTANT: Sorry, there are no flights with 0 connection.

USER: It's ok, no problem. Thank you for your help.

ASSISTANT: Welcome. Have a nice day.