How to turn off iphone 6 without using Assistive touch or power botton?

Hello,

My iphone 6 screen does not react to any pressure to open any devices. I cannot swipe down to search for settings to turn on Assistive touch and when I use the power button to turn off the iphone the device does not allow me to "slide to power off. So what are the alternatives way to power off iphone without using Assistive touch or the power button?