Final answer:
A Personal Vacation Planner can book a guest with a discount letter, following the specific terms and limitations outlined in the letter, such as blackout dates and eligibility criteria.
Step-by-step explanation:
The student is asking whether a Personal Vacation Planner (PVP) is allowed to book a guest who has a discount letter, and what limitations might apply to such a booking. Generally, PVPs can assist guests with special promotions or discounts provided that they adhere to the terms and conditions specified in the discount letter. Limitations could include blackout dates, specific eligibility criteria, or restrictions on the type of accommodations or services that can be booked with the discount. It's essential for the PVP to thoroughly understand and communicate these limitations to the guest to ensure a smooth booking process.