Lock system

--Usernames
user1 = "Sluethen"
user2 = "Admin"
user3 = "Dev"
--Passwords
pass1 = "Sluethen"
pass2 = "Admin"
pass3 = "Dev"
--End of Passwords
function Verify(user,pass)
   allowed = false
   if user == user1 then
     if pass == pass1 then
       allowed = true
     end
   elseif user == user2 then
      if pass == pass2 then
        allowed = true
      end
   elseif user == user3 then
      if pass == pass3 then
        allowed = true
      end
    end
end
--Main program
term.clear()
term.setCursorPos(20,1)
print("Security Lock")
term.setCursorPos(15,2)
print("Please enter your username")
term.setCursorPos(15,5)
write("Username:")
username = read()
term.setCursorPos(15,7)
write("Password:")
password = read("*")
Verify(username,password)
if allowed == true then
  term.clear()
  term.setCursorPos(1,1)
  shell.run("cd users/"..username)
else
  term.setCursorPos(15,10)
  print("Access denied!")
  print("Rebooting...")
  sleep(1)
  shell.run("lock")
end