Yes, this happens more often than not. Here is my secret. When you get the notification on your phone click the dinning reservation link and reserve what ever it is. No need to look before hand about the day or time. Also if you have a previous reservation for the time or within the hour of your previous reservation, it will ask you to cancel your original reservation and by the time you do, someone else has beat you to the new notification. If you are quick and get the reservation no matter the time or date and you find it isn’t what you were looking for, cancel it and let someone else have it. Be persistent! I have gotten three BOG dinner reservations this way. Only need one and will give two of them up in the future when I decide which one will fit my needs. Therefore there are many reservations that will pop up every so often. Be quick and score.