Urara is a Pokémon Trainer that was visiting Don George's Battle Club in Karakusa Town. His name actually appears on the computer screen in the
anime language when
Ash Ketchum and
Iris noticed he was currently battling. His name is not in the Japanese closed captions or credits though. Urara is generally a Japanese girls name but this is inconsequential as the person who was typesetting the name for the graphics probably just picked a name that they liked.
As
Ash Ketchum and
Iris walked into the battle area of the club, they watched as
Andre defeated
Urara's Servine.