You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you at this  moment?

USER: I want to attend a Marriage in SFO. Can you please help me for booking the flight ticket from DTW?

ASSISTANT: Sure, can I have your  travel  dates  please?

USER: My travelling dates are Aug 31 and Sep 02.

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

USER: I want to depart in morning.

ASSISTANT: Do you have any other specifications?

USER: I prefer single connecting flight.

ASSISTANT: Can I have your  good  name please?

USER: My name is Kimberly Roberts.

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

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for choosing us.