Restaurant reservation system workaround

Imagine it is 10 o' clock in the morning, and you think about planning a diner for 4 at your favorite restaurant. They are not open yet, so you go to their website, enter the dinnerbooking system and try to select 4 people at 19.00. Oh no, there is only a table for 3 left at 18.30. Very annoying, those bloody rigid IT systems! What to do? Try this workaround: Book the table for 3 at 18.30, you will get an email confirmation, reply by writing that you have made a mistake and that you would like to come with 4 at 19.00. 95% chance that you will receive this confirmed! You have just helped Denmark to improve their service levels!