noun
A professional who accompanies a tour group, handling logistics and guidance.
添乗員がバスの中で観光案内をしてくれた。
The tour conductor gave us sightseeing information on the bus.
ガイド is a more general term for a guide, while 添乗員 specifically refers to a tour conductor accompanying a group.
Compound of 添乗 (accompanying on a vehicle) + 員 (personnel).