To know whether a person is in a hotel, can you ask the front desk?

The hotel won't and can't tell you, because for hotel guests, everything is confidential. Usually you are asked to call the person you are looking for directly. If it is really urgent, the front desk will also consult the guests first, and the room number can only be told after the guests agree.

Tourists come to the front desk to ask for guest information.

For rooms that need to be kept secret, as you said, tell the hotel that there are no rooms registered for guests, and suggest whether you can contact them by other means, or tell the guests whether they can leave a message first and then tell them after they check into our hotel;

Rooms that are not required to be kept secret: ask the guest information he wants to inquire about, check the computer and ask the guest's name. Then go to a hidden place (cashier's office) or ask the assistant manager of the switchboard lobby to call the guest, and tell Mr./Ms. XXX that he/she wants to see you and ask him/her to come to the room to keep it secret: tell the hotel that there is no room registered by the guest, and suggest contacting him/her by other means.

The front desk that guests need to keep secret when they check in will be set in the system. Each department will notice that the confidential information of the guest will not be disturbed, and will help the guest filter the room phone number without the request of the guest himself or the assistant of the star politician. When someone asks for relevant information, the room price, room number and so on are also confidential.