Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:
Inevitably, some items are out of stock due to various circumstances. Rewrite the sentence to make it more convincing.

### Input:
Unfortunately, some products are unavailable because of various situations.

### Response:
We apologize in advance for any unavailability of certain products due to unforeseen circumstances.