Natsu acted as if he didn't hear a single word from the fairy and just let the two ladies handle it while his focus shifted completely on the dragon and it's likely prey.

After the spirit left, Natsu turned his head to the side to look at Lucy and nod.

"Yeah. There's people in that direction too. You need to keep Regine safe. I'll go take care of the dragon and then we can get some answers from the people."