How it works
"Ada" is text. name is a variable that holds that text. Joining "Hello, " and name builds one string, Hello, Ada. Quotes wrap text. They do not wrap the variable you want to read.
A working example
var name = "Ada";
Console.WriteLine("Hello, " + name);Expected output
Hello, Ada
Try this
Quotes wrap text, not names.
Quotes wrap text, not names.