int to int[]

Hello Friends.
I done a small program shown at below but its giving error as "cannot implicitly canvert int to int[]" in this line  Resultt= Result.IndexOf(s); how to convert it...please give me solution.....

<% 
String Result="hello dude no what is ur problem no match today is it vow no match for its gud ya k then no entries";
int[] Resultt = new int[6];
string[] a = new string[]
        {
            "no",
            "no match",
            "no match for",
            "no entries",           
        };
foreach (string s in a)
        {
            Resultt= Result.IndexOf(s);
        }
for (int i = 0; i <= 3; i++)
{
    if (Resultt[i] != -1)
    {
        Response.Write("available");
    }
    else
    {
        Response.Write("unavailable");
    }
}
%>