Trying to run sed command using as pattern lines from other file

Question

I am trying to run the following script.

#!/bin/bash
while read data; do
      echo $data;
      sed -n -e '/$data/,/reason/ p' logfile >> output-$data.txt
done <hosts

The script runs well, without errors, but for some reason I don't know why the sed command doesn't work as it should be. The output files are all empty.