public async Task <IEnumerable <ITrip> > FindTripsAsync(string from, string to, DateTime departureDate)
        {
            var fromCode = availableStations.Select(i => i).FirstOrDefault(i => i.Location == from.ToUpper())?.Code;
            var toCode   = availableStations.Select(i => i).FirstOrDefault(i => i.Location == to.ToUpper())?.Code;
            var url      = config.ApiUrl.Replace("{from}", fromCode).Replace("{to}", toCode)
                           .Replace("{date}", dateFormatter.BusDate(departureDate));
            var headers = new WebHeaderCollection
            {
                { "Accept-Language", "ua" }
            };
            var response = await httpService.MakeGetRequestAsync(url, headers);

            var responseString = await new StreamReader(response.GetResponseStream() ?? throw new InvalidOperationException()).ReadToEndAsync();
            var result         = Parser.ParseTrips(responseString).ToList();

            result.ForEach(t =>
            {
                t.FromCode    = fromCode;
                t.ToCode      = toCode;
                t.BookingLink = linkBuilder.BuildBusLink(t);
            });
            result.RemoveAll(t => t.DepartureDate < departureDate);
            return(result);
        }