Plane was old & noisy. One staff member at YVR was rude. I needed at golf cart & when I approached her she ignored me, so I excused myself again, and she was nasty. I wear a visible knee brace, needed help, but she didn't care. She was the only rude staff we encountered,but she made me feel awful. Older lady about 5 pm, blonde driving a cart by gate C29. I think she was in a hurry to go home.