[Ritchie999]

I just made a /brb command which contains "SetPlayerVirtualWorld, TogglePlayerControllable and SendClientMessageToAll" i am wondering how to make it so that if the player goes /brb it does the usual stuff, but if he comes back 30 minutes later and forgets to go "/back" and tries to type a message then it sends him a message back saying "You Are Still In Brb Status" or else if he comes "/back" and types "/back" again then a message comes up saying "You Are Already In Back Status"

Could someone help me do it?