For which accommodation code would a customer seek a wheelchair transfer seat?

The accommodation code B, which corresponds to IY, is specifically designated for a wheelchair transfer seat. This type of accommodation is essential for customers who require assistance due to mobility challenges, ensuring they have a comfortable and accessible way to travel. A wheelchair transfer seat allows for easier boarding and disembarking, addressing the needs of passengers with disabilities.

In contrast, the other codes represent different types of accommodations that do not cater specifically to the needs of customers requiring wheelchair assistance. Each code is part of a system that categorizes seating options based on various factors, such as accessibility, location, and amenities, which is why it's crucial to recognize what IY signifies in the context of accommodating passengers with special needs.