The ride from home to work and back are different rideshares. That means that you can send a different request to colleagues to share a ride to your workplace and also a separate request for a ride to your home location. You can decide who you want to invite and who you don’t want to invite to your ride. If the colleague with whom you drove to the workplace is also between the suggestions for driving back, you can choose to send only that colleague a request. However, you can also choose to return with another colleague.