PricewaterhouseCoopers has long had a desk-reservation policy, allowing employees who visit other offices to use vacant cubicles and desks.

WSJ: Warming Up to the Officeless Office

The agent told me that Delta had a special deal with Hotels.com, which is owned by Expedia, and that at the same time that I purchase my ticket she could transfer me on a direct line to a special desk at the Hotels.com reservation system and that I would receive a 25% discount.

FORBES: The Delta Air Lines Hotels.com Deal Is No Deal