[otrs] how to use OTRS to realize a approve flow ?

Hi,all how to configur OTRS to relaize this function,,,, 1, The customer sumbit a ticket,, 2, the ticket approved by a manager 3, the ticket route to the related queue, 4, the operation team process the tciket,, 5, the customer close the ticket,... any help would be thanks.. -- Jeffery `∧ ∧︵ ミ^r^ミ灬)~ iaxtel Num: 1-700-576-1311 fwdnet Num: 728150 http://www.diaip.com