Solo passengers with special needs taking Portland to Goa flights may or may not be allowed to get a person to accompany them to the gate. It is at the discretion of the airline to allow an extra person. Some airlines may allow this, while others may not. So passengers should check with the airlines in advance. In case the airline you choose to fly with allows someone to accompany you, they will be issued a gate pass by the airline. The person accompanying you will have to provide any additional information to prove their identity to the airport staff. Passengers should confirm this in time, so there is no problem later on.