<xs:element name="TravelerType" minOccurs="0" maxOccurs="unbounded">
    <xs:annotation>
        <xs:documentation source="Description" xml:lang="en">Traveler type and quantity information.</xs:documentation>
        <xs:documentation source="Moreinfo" xml:lang="en">Note: This contains the number of travelers and their age classification if traveler details are not known.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
        <xs:attributeGroup ref="TravelerCountGroup">
            <xs:annotation>
                <xs:documentation source="Description" xml:lang="en">Traveler age and category.</xs:documentation>
            </xs:annotation>
        </xs:attributeGroup>
        <xs:attribute name="TravelerRPH" type="RPH_Type" use="optional">
            <xs:annotation>
                <xs:documentation source="Description" xml:lang="en">Traveler Type Reference ID.</xs:documentation>
                <xs:documentation source="Example" xml:lang="en">Example: 1</xs:documentation>
                <xs:documentation source="Moreinfo" xml:lang="en">Note: This is a unique reference ID for one traveler that is set here and may be referenced elsewhere in this message.</xs:documentation>
                <xs:documentation source="Moreinfo" xml:lang="en">OpenTravel Best Practice: Using Reference Place Holders: The reference place holder (RPH) is a unique ID assigned to an instance in a collection of like items (e.g. used to assign a unique ID to each passenger in a list of passengers. When referencing an RPH, the same RPH type is used to identify the assigned unique ID in an element that references the item in a collection.</xs:documentation>
            </xs:annotation>
        </xs:attribute>
    </xs:complexType>
</xs:element>