 AccessibilityRequirement | Physically challenged accessibility preferences. NOT ALL TOUR/ ACTIVITY RESERVATION SYSTEMS CAN GUARANTEE ACCESSIBILITY REQUESTS. Check with your trading partner before implementing this functionality. |
 BasicInfo | Core information about the tour and/or activity being booked, including ID(s) and name. |
| Discount | Promotion code and discount program information that may be associated with an individual participant, a participant category and/or a group. |
| Extra | Extra amenities being requested and/or reserved. |
| Insurance | Existing insurance information for a participant and/or group. |
| Location | The tour/ activity location being booked.Location information for the tour and/or activity. |
| NegotiatedRate | Negotiated rate information that may be associated with an individual participant, a participant category and/or a group.Negotiated pricing for corporations and groups. |
| ParticipantInfo | Individual participant participant category and group details. |
| PaymentInfo | Payment details that may be associated with an individual participant, a participant category and/or a group. |
| PickupDropoff | The pickup and/or dropoff information if transportation is provided to/ from the tour/activity location. |
| Pricing | Pricing information for the tour/ activity that may be broken down by participant category and/or a group. |
| Schedule | The departure or tour/activity start date/time. |
| SupplierOperator | Information about the supplier/ operator of the tour/ activity.Supplier and/or operator information, including address and contact details. |
| TPA_Extensions | A placeholder in the schema to allow for additional elements and attributes to be included per Trading Partner Agreement (TPA).Allows extensions to be added to the OpenTravel specification per trading partner agreement. |