<xsd:element name="Agent" minOccurs="0">
    <xsd:annotation>
        <xsd:documentation xml:lang="en">Travel agent identification and authentication information.</xsd:documentation>
    </xsd:annotation>
    <xsd:complexType>
        <xsd:attribute name="sine" type="String_Short" use="optional">
            <xsd:annotation>
                <xsd:documentation xml:lang="en">A unique identification of an agent location that typically includes a four digit personal identification number, a two character agent identifier and a duty code.</xsd:documentation>
            </xsd:annotation>
        </xsd:attribute>
        <xsd:attribute name="pseudoCityCode" type="Code_PseudoCity" use="optional">
            <xsd:annotation>
                <xsd:documentation xml:lang="en">A three to five character code (alpha, numeric, or combination) that specifies a GDS code used to identify a travel agency location. Typically required when using negotiated rates to associate the rates to an agency.</xsd:documentation>
            </xsd:annotation>
        </xsd:attribute>
        <xsd:attribute name="dutyCode" type="Code_AgentDuty" use="optional">
            <xsd:annotation>
                <xsd:documentation xml:lang="en">Typically a two to five character code (alpha, numeric, or combination) code that specifies a travel agents duty code that is used for agency authentication.</xsd:documentation>
            </xsd:annotation>
        </xsd:attribute>
        <xsd:attribute name="terminalID" type="String_Short" use="optional">
            <xsd:annotation>
                <xsd:documentation xml:lang="en">The electronic address of the device from which information is entered.</xsd:documentation>
            </xsd:annotation>
        </xsd:attribute>
    </xsd:complexType>
</xsd:element>