In case of a serious problem, that has to be solved personally by the HostelSystem team members, establishing a connection between the private computer of the client and the computer of HostelSystem  team member will be necessary. 

To establish such connection it is necessary to download the TeamViewer program. 
TeamViewer is a completely free tool that makes the connection between two computers possible. It is also free because after closing the program univated access to the clients computer will not be possible.

TeamViewer can be downloaded over here.