If the credit transaction did not process, what should you do before re-swiping a passenger's card?

Informing the passenger about the invalid payment is essential before attempting to re-swipe their card. This step ensures transparency in the transaction process and maintains clear communication with the passenger. By explaining that the payment did not go through, you provide them with an opportunity to address the issue, which could involve checking the card's status or ensuring they have sufficient funds. Moreover, this action helps build trust and avoids any confusion that could arise if the passenger is unaware of the failed transaction.

Taking this approach also allows the passenger to express any concerns or preferences, such as wanting to use a different payment method. Once they are informed about the situation, you can proceed effectively with the next steps, whether it's retrying the transaction or exploring alternative payment options.