It doesn't matter if I take the puppy to the hotel.

Different hotels have different rules. If pets or activities are not allowed to enter, there will be clear hints, such as words or picture signs prohibiting pets from entering the door.

If there is a relevant ban, the waiter or other staff will definitely discourage or report it after discovering it.

Most public places, including hotels, say "no" to ordinary domestic pets. Even seeing-eye dogs, which have absolute health protection (needless to say, public places should be completely open to regular working dogs without any restrictions), can't be unimpeded. So I hope the landlord had better know about it, or negotiate with the hotel before taking the pet to eat and stay.

The most common situation is that the hotel does not explicitly prohibit it or not. If you bring a dog, the hotel has nothing to say, but other guests may have opinions. If someone complains, the hotel must accept it. ...