Can I show Credit Card Data to final customers and be PCI Compliant?
Ultimately, I think you're going to have to figure this out with your PCI auditor, which I am not. I think you're going to have a hard time figuring out how to do this is a way that is a) not overly burdensome to you and the ultimate users of the card data, and b) leaves you with a system that is still PCI compliant and that your auditor will give a stamp of approval, but I also don't think PCI DSS v3 makes it impossible.
This is the most significant issue:
Once card data enters a PCI compliant system, it cannot be extracted and delivered via non-compliant means. This means that you can't get the card data out, and email it to a hotel, for instance, or give to someone over the phone. It must at all times be encrypted, access logged, and unprotected PANs only displayed to those with a legitimate business need.
Now, given that the hotel personnel do in fact have a legitimate business need (they need to be able to charge the card) if access is appropriately restricted and audit logged, you may be able to successfully argue this. It still elevates the level of risk, however, and any given auditor may refuse to buy this line of reasoning.
You would be far better off if you could send the data directly to the hotel or tour operators own PCI-compliant processing systems and let them worry about it from there, instead of having to work through human intermediaries.