How to implement if else in jmeter

I need to implement below in jmeter

flag == 1

while (flag == 0) check status if status == successful Change the value of flag to 0 check status if status == failed Change the value of flag to 0 check status

if status == in progress Change the value of flag to 0 check status

if flag is 0 while loop should stop and user should go to next transaction