You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I assist you today?

USER: I wish to travel to Phoenix to meet my girl friend. I need your help to book a ticket.

ASSISTANT: Sure, Could you please provide your journey details?

USER: definitely. My journey starts from CO-DEN to AZ-PHX on 11/18 to 11/20. I need a connection limit to be 0.

ASSISTANT: OK, please wait a moment.

USER: Sure.

ASSISTANT: Sorry, we do not have direct flight.

USER: OK, thank you for your help.

ASSISTANT: May I know your name?

USER: I am Deborah Adams.

ASSISTANT: OK, have a nice day.

USER: Thank you.