<xs:element name="BookingInfo" minOccurs="0">
    <xs:annotation>
        <xs:documentation xml:lang="en">Booking information related to this passenger and flight.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
        <xs:sequence>
            <xs:element name="BookingReferenceID" minOccurs="0" maxOccurs="9">
                <xs:annotation>
                    <xs:documentation xml:lang="en">The PNR reference of the carrier (e.g., marketing, operating, validating).</xs:documentation>
                </xs:annotation>
                <xs:complexType>
                    <xs:complexContent>
                        <xs:extension base="UniqueID_Type" />
                    </xs:complexContent>
                </xs:complexType>
            </xs:element>
        </xs:sequence>
        <xs:attribute name="StatusCode" use="optional">
            <xs:annotation>
                <xs:documentation xml:lang="en">The booking status code (e.g., HK, WL, SB). Refer to AIRIMP Chapter 7.</xs:documentation>
            </xs:annotation>
            <xs:simpleType>
                <xs:restriction base="xs:string">
                    <xs:pattern value="[A-Z0-9a-z]{2}" />
                </xs:restriction>
            </xs:simpleType>
        </xs:attribute>
        <xs:attribute name="StatusName" type="StringLength1to32" use="optional">
            <xs:annotation>
                <xs:documentation xml:lang="en">The booking status expressed as text (e.g., confirmed, waitlisted, standby). </xs:documentation>
            </xs:annotation>
        </xs:attribute>
    </xs:complexType>
</xs:element>