Receive query                                                                                                                                                                       
                                                                                                                                                                                                                      
                                                                                                                                                                                                                      
                                                                                                                                                                                                                      
                                                                                                                                                                                                                      
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                                                                         ok to connect?                                                                                                                          false
                                                                                                                                                                                                                      
                                                                                                                                                                                                                      
                                                                                                                                           true                                                                       
                                                                                                                                                                                                                      
                                                                                                                                                                                                                      
                                                                                                                                                                                                                      
                                                                                      Connect                                                                                                                         
                                                                                                                                                                                                                      
                                                                                                                                                                                                                      
                                                                                                                                                                                                                      
                                                                                                                                                                                                    no                
                                                                                      connected?                                                                                                                      
                                                                                                                                                                                                                      
                                                                                                                                                                                                                      
                                                                                                                                           yes