Hello.
user
Hello. How can I assist you today?
assistant
I am planning to visit a Liberty Bell in PHL from DTW. Can you find a ticket for me?
user
Sure, will you provide your travelling dates please?
assistant
Ok, my planned dates are 06/27 to 06/29.
user
Please give me a moment. May I know your name for booking the ticket?
assistant
Ok, make sure that the connection limit is  1. Yes, I am Margaret Green.
user
Unfortunately, there is no flights with connections 1.
assistant
Ok, no problem. Thank you for your information.
user
Welcome, have a great day.
assistant