LONDON (Reuters) - The European Union’s chief negotiator Michel Barnier said on Saturday he would continue to look for a way to do a trade deal with Britain, but was non-committal on the chances of bridging the current impasse in the Brexit talks. “We keep calm, as always, and if there is still a way, we will see,” he told broadcasters in London as he entered the train station to head back to Brussels after talks were paused.