You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you today?

USER: I am Joseph Taylor. I would like to attend my friend marriage in Detroit, can you please book a flight ticket from BOS to DTW?

ASSISTANT: Sure, can you please confirm your planned trip dates?

USER: My journey dates are, depart on Aug 23rd  and return back on Aug 25th.

ASSISTANT: Thank you, do you want any halt in between in your journey?

USER: Yes, I need a halt in between journey.

ASSISTANT: Sure, is there any another specifications on your trip, so that I can book a ticket as per your wish?

USER: Sure, no need any more specification in my journey.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, there is no flight found with your requirement.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Welcome, thank you for reaching us.