Transfer data from structured mesh to points

I have two datasets. 1st dataset is a vtk file imported from OpenFoam and it contains data over a structured mesh. 2nd dataset is a vtk file but has data over the points only. I want to transfer the 1st dataset to the 2nd one. I tried using the Resample with dataset filter but the output contains empty arrays. Please explain how it can be done.

The structured mesh can be found here CD_100_1000000.vtk - Google Drive while the unstructured vtk file can be found here.
Unstructured.vtk (862.7 KB)

When the second point cloud is displayed using the Point Gaussian representation, it appears that the first mesh and the second point cloud do not overlap. If the two data sets do not overlap, then the Resample with dataset filter will not work.