| CruiseLineInfo | Defines the contact information for the cruise line.Name of an individual and appropriate contact information. May be contact information for the customer or someone affiliated with the customer. |
 PolicyInfo | Used to provide policy information.An indication of a new paragraph for a sub-section of a formatted text message. |
| ReservationID | Specifies the reservation control information or the guest's booking ID in modification mode (e.g. PNR Record Locator and/or Vendor Confirmation Number). |
| SailingInfo | Specifies the selected category to book. Contains information related to the selected sailing. Typically the selected sailing is one of the sailings returned in the previous sailing availability response.Provides category information for the specified sailing. |
| ShipInfo | Defines the ship characteristics.Defines the ship details. |