For Packt, GetConversations()

FakeWebService.cs

public async Task<Conversation[]> GetConversations(
  string userName)
{
  await Sleep();
  return new[] 
  { 
    new Conversation { Id = "1", UserName = "bobama" },
    new Conversation { Id = "2", UserName = "bobloblaw" }, 
    new Conversation { Id = "3", UserName = "georgemichael" }, 
  };
}