You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you now?

USER: I am James Hill. I am a singer, I have to participate in a contest at PHL. So please book my ticket from DEN.

ASSISTANT: Sure James Hill, I will help you with that. Can I have your travel dates please?

USER: My trip dates are Sep 21 to Sep 23.

ASSISTANT: Ok, please let me know the timings of your journey.

USER: I need a connecting flight which depart in afternoon.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry James Hill, no afternoon flight is available to you on your dates.

USER: No issue, thank you.

ASSISTANT: Thank you for choosing us, have a good day.