Sign Form DS-11 in front of a Consular Officer. If children are not travelling with both their parents, (ie: if they are travelling alone, or with another adult), this form can be used to give permission.1. Document Header - Begin with a clear and descriptive title, like "Child Travel Consent Form. The form linked below is permission to travel. Download and fill it out. Here are the steps to write one: 1. Document Header - Begin with a clear and descriptive title, like "Child Travel Consent Form." The form linked below is permission to travel. Download and fill it out. A child travel consent form allows a minor to travel alone or with another person or group.