Using booking.com is easy and reliable. I have been traveling, to Europe, for over 30 years. In the olden days you used to have to send a letter to the hotel that you were interested in. First you had to find a hotel in a guidebook, write to them, wait for them to write back to you, send your nonrefundable cashiers check, and then hope that everything went well upon your arrival (sometimes it didn't work out real well). Now, if you use booking.com, you go online, choose your hotel, and secure it with a credit card. You can manage your bookings very easily. We like to make our arrangements way in advance, so it is great that you can change your mind if you need to.