I'm curious what the most popular color of hair dye is, in the United States. Red head, or blonde?
user
I don't know about in the United States, but there are lots of colors of hair dye that are used around the world.  Is there a specific color or hair style that you're curious about?
assistant
I've mentioned two already.
user
Can I ask a follow-up question? Do you mean popular among the general population of the US, or among specific demographics?
assistant
I'm curious what the most popular color of hair dye is, in the United States. Red head, or blonde?
user
I don't know about in the United States, but there are lots of colors of hair dye that are used around the world.  Is there a specific color or hair style that you're curious about?
assistant
I've mentioned two already.
user
How about you tell me more about what you're looking for in a hair color?
assistant
I'm curious what the most popular color of hair dye is, in the United States. Red head, or blonde?