Where can I book a hotel online? How to book a hotel online? I don't know anything about my first trip. Please answer that there is no credit card.

You can pay in advance or at the hotel.

Check the hotel reservation, just fill in personal information, he will send a confirmation message, and sometimes he will call manually to confirm.

If you pay at the hotel, you should arrive before the latest time. If you really can't go, you can discuss it with the hotel.