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The airline had paused flights on Friday morning, saying it had “experienced technical system issues.”

Airlines occasionally pause flights, known as a ground stop, for technical reasons. Often, the stops are temporary and service resumes quickly after, though not without causing delays and possibly even some cancellations. Sometimes, a ground stop can be part of a more lasting disruption.

“We are aware of the issue and are working to resolve it as quickly as possible,” the company wrote on Twitter, addressing consumer complaints. “We’re sorry for the inconvenience.”

In a statement before 8 a.m., the airline said it had “experienced technical system issues” and that all systems were working normally again.

The airline issued a ground stop on all its traffic in the United States and Canada, according to the Federal Aviation Administration’s website .

United Airlines issued a ground stop on all its traffic in the United States and Canada, according to the Federal Aviation Administration’s website.

Image Prince Charles, left, with Richard Gnodde, the head of Goldman Sachs International, in London in July. Credit... Peter Nicholls/Reuters

The investment banking giant Goldman Sachs planted its flag far from any of the world’s major financial centers this week, opening a new office in Birmingham, Britain’s second-largest city after London. So far, about 100 people have been hired or moved there.

At the office’s opening, Richard Gnodde, the head of Goldman Sachs International, spoke about Goldman’s future in Britain after Brexit and how the investment bank’s return-to-office plans were progressing. The conversation was condensed and edited for clarity.

Post-Brexit agreements between Britain and the European Union aren’t forthcoming, so British regulators are reviewing a lot of their financial rules. Is there anything you want to see changed?

Where we would want change is redundant, unnecessary regulation, which pushes up our cost of production because we are filing reports that no one ever looks at.

There’s a set of rules that right now is identical given that we were all joined up 12 months ago. If, on the margin, either side starts tinkering with those rules so there’s just a marginal difference, but no real benefit, we can’t then apply one set of processes across the board. Let’s not make changes for changes’ sake.

Do you expect to move more staff out of London? We are done with the work that we needed to do for Brexit. But our teams will continue to evolve. And so there will be movement from here into Europe. Are you planning more acquisitions in Europe? To the extent that we saw further interesting acquisition opportunities across the asset management space, we’d be interested in that. And something potentially in the consumer space. You removed social distancing in your British offices, returned them to full occupancy and encouraged staff to return. Did you feel something was lost when most people were working from home? Every year, we bring a lot of people into the firm. And how do you integrate, how do you train those people? Memories fade. The office is our center of gravity, absolutely crystal clear. People should be spending the majority of their time in the office, but around that there can be flexibility. Why did you choose Birmingham for the new office? We looked up and down the U.K. One, there is proximity to London, which is helpful. But the talent base is deep and it’s broad and it’s diverse. And there’s an efficiency, a cost advantage. Both of those things are obviously important. We opened our office in London just over 50 years ago. It’s taken us 50 years to go to the next step in the U.K.

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