You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I want to book a ticket from ATL to DTW, can you help me?

ASSISTANT: Sure, I am happy to help you with that. Can I have your travel dates please?

USER: My travel dates are 04/22 and 04/24.

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

USER: I am comfortable at any time.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight.

ASSISTANT: Can I have your good name please?

USER: I am Gregory Turner.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry Gregory Turner, no flight is available to you on your dates.

USER: No problem, thanks for checking.

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