the arabic string is not readable when load json - ios

Question

Code:
+(id)loadJSONDataFromURL:(NSString *)urlString{
MsgsHelper *msg=[[MsgsHelper alloc]init];
// This function takes the URL of a web service, calls it, and either returns "nil", or a NSDictionary,
// describing the JSON data that was returned.
NSError *error;
NSURL *url = [NSURL URLWithString:urlString];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
[request setHTTPMethod:#"GET"];
[request setValue:#"application/json" forHTTPHeaderField:#"Content-Type"];
// Call the web service, and (if it's successful) store the raw data that it returns
NSURLResponse *response = nil; //
NSData *data = [ NSURLConnection sendSynchronousRequest:request returningResponse: &response error:&error ];
//here we get the respond from NSURLResponse and then we check for the statusCode //1
//200 is ok,, 0 is no internet connection else is server error //2
NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)response;//1
//any warning like this one with integers shuold add the casting (int)
int statCode = (int)[httpResponse statusCode];//2
if(statCode == 200){
if (!data)
{
//NSLog(#"Download Error: %#", error.localizedDescription);
return nil;
}
// Parse the (binary) JSON data from the web service into an NSDictionary object
id dictionary = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error];
if (dictionary == nil) {
//NSLog(#"JSON Error: %#", error);
return nil;
}
return dictionary;
}else if(statCode == 0){
[msg alertStatus:NSLocalizedString(#"No internet", #"Message") :#"" :0 ];
return nil;
}else{
//Server Error
//NSLog(#"Server Error");
[msg alertStatus:NSLocalizedString(#"Server Error", #"Message") :#"" :0 ];
return nil;
}}
the problem on result as below:
results: (
{
"Name" = "\U0633\U0639\U0648\U062f \U0639\U0628\U062f\U0627\U0644\U0639\U0632\U064a\U0632 \U064a\U0646 \U062c\U062f\U064a\U062f";
"location" = CENTER;
}
)
maybe need to dataUsingEncoding to read arabic string, but how do it.
Thanks,