Custom HTTP Response C# And Ajax?

I'm trying to query a database that contains information about a "ticket" using jQuery's .ajax() method.

$.ajax({
type: 'GET',
url: 'Preview.ashx',
data: 'ticketID=' + ticketID,
success: function (data) {
// 'data' should be a row from the database, so it should be like an
// array that contains each column of the row
// do stuff with this data
}
});
... so that all works fine. I'm having trouble with the data variable. On the server side, I do...
// get the ticket ID from the POST parameter
int ticketID = context.Request["ticketID"] != null ? Convert.ToInt32(context.Request["ticketID"]) : -1;
if (ticketID >= 0) {
// grab the data from the database, getInfo() will retrieve the row
// in the DB that corresponds to the ticket ID given, returning an
// ArrayList with all of the information
ArrayList theTicket = getInfo(context, ticketID);
// now, I need to somehow return this information so that I could deal with it
// in the 'success' callback function above
return;
} else {
// something went wrong with the 'newTicket' POST parameter
context.Response.ContentType = "text/plain";
context.Response.Write("Error with 'ticketID' POST parameter.
");
return;
}
return;

I've debugged this enough to be sure that the ArrayList contains the correct information. Now I just need to return it. How would I do this? How would I return the data in the ArrayList? Is it possible to structure the response so that I could do data.ID, data.otherColumnName, etc... in the callback function to access the different fields?