Thank you for this post. I wanted a lunch ADR for 2, nothing available for all our days...it never crossed my mind to search for party of 1...voila! There were several days/times available and I was able to overlap 2 reservations for 1.
I have eaten in BOG at least a dozen times and the smallest table is for 2 (and there are very few of them!) Since you pick your own table at lunch, I am not concerned about being unable to sit with my dining companion. I don't know how two "single" reservations would be handled at dinner; obviously they will not seat a single diner with other guests, so I assume that two parties of 1 (traveling together) with overlapping times can share the same table.