Reply to a TTP request message The type of the answer : warning, aknowledgement, PNR display... Contains warning and errors. Code identifying the data validation error condition. Identification of a code list. Code identifying the agency responsible for a code list. To identify the type of application error within a message. Application error details. Conveys a potential error. The details of error/warning code. The desciption of warning or error. textSubjectQualifier source encoding This segment is used to convey the free text warning/error message details. Free text and message sequence numbers of the remarks. To specify the type of query and the processing status associated with this response. type of the answer Format limitations: a..6 Format limitations: an..199 Format limitations: an..5 Format limitations: an..3