public async Task <IEnumerable <ServiceBlModelResponseForTicket> > GetServices(int sessionId)
        {
            DalSessionModelResponse session = await _sessionRepository.GetSessionById(sessionId);

            if (session == null)
            {
                return(null);
            }

            IEnumerable <ServiceDalDtoModelResponseForTicket> services = await _sessionRepository.GetServices(sessionId);

            return(services.Select(Mapper.Map <ServiceBlModelResponseForTicket>));
        }