My service for searching my Azure Search Index

Azure Search Query Service.cs

public class AzureSearchService : ISearchService
    {
        private readonly SearchIndexClient _boatSearchClient;

        public AzureSearchService()
        {
            _boatSearchClient = new SearchIndexClient(ConfigurationsUtils.Configuration["SearchServiceName"], 
            ConfigurationsUtils.Configuration["SearchBoatsIndex"], 
            new SearchCredentials(ConfigurationsUtils.Configuration["SearchServiceQueryApiKey"]));
        }

        public async Task<List<int>> SearchBoatsAsync(string searchTerm, int skip = 0)
        {
            var results = await _boatSearchClient.Documents.SearchAsync<SearchResponse>($"{searchTerm}*", 
            new SearchParameters()
            {
                Skip = skip
            });

            return results.Results.Select(x => Convert.ToInt32(x.Document.Id)).ToList();
        }
    }