How do hotels address their guests' surnames?

Of course, if you know the guest's last name, you should call him Mr. Jia.

, which will close the distance. Of course, this is a more official name. If you are a frequent visitor or a familiar guest, you will usually call your brother. For women, they are all called miss, but now they are no longer called "miss". It is the same. It's more intimate to know your last name.