Booking_header_change

<booking_header_change>
  <link>
    <user>integer(4)</user>
    <password>character(20)</password>
  </link>
  <booking>
    <booking_id>integer(6)</booking_id>
    <reservation>character(10)</reservation>
    <reservation_date>yyyy-mm-ddThh:mm:ss (iso8601)</reservation_date>
    <reservation_remarks>character(500)</reservation_remarks>
    <customer_email>character(50)</customer_email>
    <customer_name>character(50)</customer_name>
    <customer_address>character(50)</customer_address>
    <customer_city>character(50)</customer_city>
    <customer_country>iso3166 </customer_country>
    <customer_zip>character(50)</customer_zip>
    <customer_telephone>character(50)</customer_telephone>
    <customer_language>iso639-1 </customer_language>
    <cc_number>character(16)</cc_number>
    <cc_type>character(50)</cc_type>
    <cc_expiration>yyyy-mm </cc_expiration>
    <cc_cvc>character(3)</cc_cvc>
    <cc_name>character(50)</cc_name>
    <currency>iso4217 </currency>
    <arrival_time>hh:mm </arrival_time>
    <flight_number>character(50)</flight_number>
  </booking>
</booking_header_change>