These sentences were read aloud by real people — native Japanese speakers — for the open Mozilla Common Voice project. Listen to how a phrase sounds in real speech: the intonation, the pace, the way words run together. Two speakers mean two different people read it — compare them.
搭乗口がどこか分かりません。
とうじょうぐちがどこかわかりません。I don't know which boarding gate it is.