Based on the provided BPMN 2.0 XML, the tasks in the process model are listed as elements with the tag `<bpmn:task>`. Here is the list of tasks defined in the process model including their ids and names:

1. Task id: "idb86a1356-bb12-4a45-b1a3-d430cf587b6b", name: "decide"
2. Task id: "idd3814e0c-ae8b-41d6-b7a1-7c0e9385eb3e", name: "pay compensation"
3. Task id: "id8c2e27f2-838e-47e7-9506-1387d1d642eb", name: "check ticket"
4. Task id: "id1c963927-0fbe-4028-9d31-536a6e5362a9", name: "examine casually"
5. Task id: "id3a2e2f29-0e15-4dca-9602-6f8929a0dbcb", name: "register request"
6. Task id: "idfe1bd2a5-fb67-4a1a-b520-d7d02ee587e7", name: "reject request"
7. Task id: "idc5b9256f-0a5c-43f7-9877-8a7d17977ee2", name: "examine thoroughly"
8. Task id: "id25fcead3-d54b-47a1-b9dc-5ac5df8a31db", name: "reinitiate request"

Each task is an activity to be completed within the process.