Method of controlling operation of an elevator system comprising a hoistway extending between a plurality of landings situated on different floors ; at least one elevator car configured for moving along the hoistway between the plurality of landings ; and landing control panels provided at each of the landing and configured for receiving control inputs from passengers ; wherein the method includes: receiving at least one control input indicating a passenger transport request via one of the landing control panels , the control input comprising at least one passenger transport request parameter; monitoring passengers within or outside the at least one elevator car and determining at least one passenger parameter associated with the passengers ; comparing the at least one passenger transport request parameter with the at least one passenger parameter; and controlling further operation of the elevator system based on the result of said comparison; characterized in that the method further includes identifying all individual passengers inputting control inputs, after the elevator car , which has been assigned to the respective passenger by the dispatching algorithm, has arrived at the passenger's floor , checking whether the passengers associated with a control input have boarded the elevator car , and ignoring a control input if none of the passengers associated with said control input boarded the elevator car . a hoistway extending between a plurality of landings situated on different floors ; at least one elevator car configured for moving along the hoistway between the plurality of landings ; and landing control panels provided at each of the landing and configured for receiving control inputs from passengers ; wherein the method includes: receiving at least one control input indicating a passenger transport request via one of the landing control panels , the control input comprising at least one passenger transport request parameter; monitoring passengers within or outside the at least one elevator car and determining at least one passenger parameter associated with the passengers ; comparing the at least one passenger transport request parameter with the at least one passenger parameter; and controlling further operation of the elevator system based on the result of said comparison; characterized in that the method further includes identifying all individual passengers inputting control inputs, after the elevator car , which has been assigned to the respective passenger by the dispatching algorithm, has arrived at the passenger's floor , checking whether the passengers associated with a control input have boarded the elevator car , and ignoring a control input if none of the passengers associated with said control input boarded the elevator car . receiving at least one control input indicating a passenger transport request via one of the landing control panels , the control input comprising at least one passenger transport request parameter; monitoring passengers within or outside the at least one elevator car and determining at least one passenger parameter associated with the passengers ; comparing the at least one passenger transport request parameter with the at least one passenger parameter; and controlling further operation of the elevator system based on the result of said comparison; characterized in that the method further includes identifying all individual passengers inputting control inputs, after the elevator car , which has been assigned to the respective passenger by the dispatching algorithm, has arrived at the passenger's floor , checking whether the passengers associated with a control input have boarded the elevator car , and ignoring a control input if none of the passengers associated with said control input boarded the elevator car . <EOS>