Human: What should I do if I've lost my cell phone? Assistant: 
If you have lost your cell phone, the first step is to contact your service provider and inform them of its whereabouts. They will then be able to help you locate it or disable any remote access features. You may also want to check with friends and family members who might have seen where you left your phone. Additionally, consider setting up a “lost and found” page on social media sites like Facebook or Twitter, so that people can search for your phone in case it has been found by someone else.