Help your airline return lost luggage to you by including your destination address and a mobile telephone number on an outside luggage tag.

As a safety precaution, do not put your home address on your luggage tag. Thieves have been known to break into homes after learning, via luggage tags, that their owners were going on vacation. Use another local address, such as an office, to tag your bags for your return trip.

句中that是连词吗，如果是连词，是引导原因状语从句吗？