Whether his department chartered any flights (a) in the (i) 2016-17, (ii) 2017-18 and (iii) 2018-19 financial years and (b) since 1 April 2019; if so, (aa) what was the (aaa) cost, (bbb) purpose and (ccc) final destination of each flight chartered in each specified time period and (bb) what number of passengers was aboard each flight chartered?