<xs:schema attributeFormDefault="unqualified"
elementFormDefault="qualified" xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <xs:element name="Booking">
    <xs:complexType>
      <xs:sequence>
        <xs:element name="Countries" maxOccurs="unbounded" minOccurs="1">
          <xs:complexType>
            <xs:sequence>
              <xs:element name="CountryName" type="xs:string"/>
              <xs:element name="Cities" maxOccurs="unbounded" minOccurs="1">
                <xs:complexType>
                  <xs:sequence>
                    <xs:element name="CityName" type="xs:string"/>
                    <xs:element name="Accommodations" maxOccurs="unbounded"
                                                      minOccurs="0">
                      <xs:complexType>
                        <xs:sequence>
                          <xs:element name="AccName" type="xs:string"/>
                          <xs:element name="AccType" type="xs:string"/>
                          <xs:element name="PricePerNight" type="xs:float"/>
                          <xs:element name="ReviewScore" type="xs:float"/>
                          <xs:element name="Reservations" maxOccurs="unbounded"
                                                        minOccurs="1">
                            <xs:complexType>
                              <xs:sequence>
                                <xs:element name="Check-in-date" type="xs:date"/>
                                <xs:element name="Check-out-date" type="xs:date"/>
                                <xs:element name="Payment">
                                  <xs:simpleType>
                                    <xs:restriction base="xs:string">
                                      <xs:enumeration value="AtRes"/>
                                      <xs:enumeration value="AtArrival"/>
                                      <xs:enumeration value="AtDeparture"/>
                                    </xs:restriction>
                                  </xs:simpleType>
                                </xs:element>
                              </xs:sequence>
                              <xs:attribute name="GuestID" type="xs:IDREF"/>
                            </xs:complexType>
                          </xs:element>
                        </xs:sequence>
                        <xs:attribute name="AccID" type="xs:ID"/>
                      </xs:complexType>
                    </xs:element>
                  </xs:sequence>
                </xs:complexType>
              </xs:element>
            </xs:sequence>
          </xs:complexType>
        </xs:element>
        <xs:element name="Guests" maxOccurs="unbounded" minOccurs="1">
          <xs:complexType>
            <xs:sequence>
              <xs:element name="GuestName">
                <xs:complexType>
                  <xs:choice>
                    <xs:element name="FullName" type="xs:string"/>
                    <xs:element name="DetailedName">
                      <xs:complexType>
                        <xs:sequence>
                          <xs:element name="FirstName" type="xs:string"/>
                          <xs:element name="MiddleName" type="xs:string"/>
                          <xs:element name="LastName" type="xs:string"/>
                        </xs:sequence>
                      </xs:complexType>
                    </xs:element>
                  </xs:choice>
                </xs:complexType>
              </xs:element>
              <xs:element name="Email" type="xs:string"/>
              <xs:element name="PhoneNumber" type="xs:string"
                          maxOccurs="unbounded" minOccurs="1"/>
            </xs:sequence>
            <xs:attribute name="GuestID" type="xs:ID"/>
          </xs:complexType>
        </xs:element>
      </xs:sequence>
    </xs:complexType>
  </xs:element>
</xs:schema>