Given the task definition and input, reply with output. In this task, you are given dialogue, and you have to find the most critical location in the given conversation.

Hi, can you tell me about Lafayette, Louisiana?
Hello. Lafayette is the fourth largest city in the state of Louisiana. It was founded in 1821, and originally named Vermilionville. What else would you like to know?
Thanks, what do you know about the history?
In 1824, the area was selected for the Lafayette Parish seat. It was named Vermilionville for its location on the river. Then, in 1836, the Louisiana Legislature approved its incorporation.
That's interesting, can you tell me more?
According to the US Census, 41% of Lafayette Parish's population was enslaved in 1830, and that number increased to 49.6% by 1860.
Thank you, can you tell me about the demographics?
I'm sorry, I do not have that information. What else can I tell you about?
Can you share any other information about it?
I can share more historical information; During the time of the first European encounter, the Attakapas Native Americans inhabited the area first. Also, the name "Lafayette" comes from the French military hero who aided and fought alongside the American Army during the American Revolutionary War.
I didn't know that, thanks for your help!
You're welcome!
Lafayette, Louisiana