I'm Stuck in the Lift

Good morning ma'am, I'm from my company.
Make no mistake, I always ace my delivery.
Take my card, my ID, and up the floors I'm gone.
But when the lift doors opne to aservice cone.
My quest is blown.
My heart and lift drop like a stone.
Now I atone by do'in it all over again,
This time be quick, get stars and win the game.