Welcome...

you enter the elevating disk, you can see a light brown hair girl stand in front of you, she look emotionless but when you enter, she start to say:

I have no name, but you can call me Evelating Operator...

she enter the main question

The disk is between 50th and 80th floors of the Central Cathedral, so which floor you want to go?

she ask calmly, but keep maintain her emotionless