private async Task <string> MakeRequestToLuis(string query)
{
var queryString = BuildQueryString(query);
_httpClient.AddHeaders(OcpApimSubscriptionKey, _luisSettings.SubscriptionKey);
var uri = _luisSettings.LuisUrl + _luisSettings.LuisAppId + "?" + queryString;
var response = await _httpClient.GetAsync(uri);
var responseContent = await response.Content.ReadAsStringAsync();
return(responseContent);
}