Barliman confided that a recent arrival to the Prancing Pony is one he would rather do without. He suggested speaking with him, as he may be the sort of individual for whom you are looking.
'So many people coming and going these days.... There is one guest though, one I'd rather do without, but coin keeps a room and he comes with coin enough to pay a bill.
'Brooding sort, likes the darker corners of the Inn and speaks to none. Most people are a bit afeared of his ilk.'
Barliman lowers his voice. 'He's one o' them Rangers, he is. Calls himself Strider. From the common room turn left down the hall -- keep on until you can only go right. Follow straight down that hall until you're at the foot of the stairs. Strider is in the room to the right of the stairs.'
Strider's room in The Prancing Pony Inn in Bree can be found by heading left down the hall out of the common room, until you can only bear right. Strider's room is to the right of the stairs at the end of the hall.
Barliman explained that a Ranger, Strider, was in a room in the Prancing Pony. He directed from the main bar to follow the hall left to the top of the stair, look for a short hall and door on the right and you should find Strider.