| Profile | Basic traveler profile.Root element for profile content. |
| SpecialRequests | The SpecialRequest object indicates special requests for a particular traveler.A collection of SpecialRequest objects. The collection of all special requests associated with any part of the reservation (the reservation in its entirety, one or more guests, or one or more room stays). Which special requests belong to which part is determined by each object's SpecialRequestRPHs collection. |
| TPA_Extensions | A placeholder in the schema to allow for additional elements and attributes to be included per Trading Partner Agreement (TPA).Allows extensions to be added to the OpenTravel specification per trading partner agreement. |
 TravelerCharacteristic | Used to define a traveler's physical characteristic. |