1. I had to cancel my appointment due to sudden illness.
2. Please cancel my subscription to the magazine.
3. The flight was cancelled due to bad weather conditions.
4. I need to cancel my hotel reservation for next week.
5. The event had to be cancelled because of a lack of participants.
6. The company decided to cancel the project due to budget constraints.
7. I had to cancel my plans for the weekend due to unforeseen circumstances.
8. Please cancel my order and process a refund.
9. The meeting was cancelled at the last minute.
10. I had to cancel my gym membership due to relocation.
11. The concert was cancelled due to the singer falling ill.
12. The class was cancelled because the teacher was absent.