public async Task <JobOrder> SubmitJobOrder(string confId, Job jobDetail)
{
var importTask = new TaskCompletionSource <JobOrder>();
var importJobOrder = JobOrder.CreateJobOrder(jobDetail);
var conference = await _dbContext.FindAsync <Conference>(Int32.Parse(confId));
conference.AddJobOrder(importJobOrder);
_dbContext.Update <Conference>(conference);
_dbContext.SaveChanges();
importTask.SetResult(importJobOrder);
return(await importTask.Task);
}