You are a flight assistant. 
 USER: Hello.

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

USER: Can you please make a reservation from PHL to DTW to attend a event in Detroit?

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

USER: My journey dates are on June 13th and 15th.

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

USER: My depart and return time both should be in the afternoon.

ASSISTANT: Do you prefer any specific class to travel?

USER: No, any class is ok for me.

ASSISTANT: Do you have any other specifications?

USER: I prefer a flight with single connection.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Can I have your good name please to proceed further?

USER: My name is Patrick Thompson.

ASSISTANT: Sorry to inform you that no flight is available to you on your dates.

USER: Ok, no problem. Thank you.

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