Drupal uc_hotel: Who's coming today?

Environment: Drupal 6x, Ubercart, uc_module

Use case: Give admin info about arrival per day basis.

We have our hotel website running on Drupal 6x with ubercart and uc_hotel .
We receive reservation and we have rooms with calendar exposing available day on green, reserved days on red, etc.
Here's what our calendar looks like: