Store those three lines in a string variable. In my example below it is TestString.
Then you can use the Assign activity to store the value of the Name in another variable.
TestString.Substring(TestString.IndexOf("Name: ")+"Name: ".Length).Split(Environment.NewLine.ToCharArray)(0)
Replicate for age and gender.
Example attached:
TestString_Parse.xaml (6.9 KB)