My contact number and my cat-sitter's numbers are always on a card inside my case and in my hand luggage and
I think I'll put my name, flight number and destination on my own label on my case, and put the JY label on when we land.
I had thought about putting a JY label on my hand luggage as suggested but, like another subscriber, I like to fly in my own bubble. On the other hand, there might be someone who is nervous or who needs help and would like to touch base with a fellow traveller. I'll take a view on the JY label on my hand luggage at the airport 😉