Very disappointed at the service of Ocean Blue Cafe. The food was great, but the rude and impatient manner of one of the staff was quite appalling. There was a misunderstanding as I ask the other staff specifically about how to make reservation for window seats and was told to wait next to the table and fill in after the previous customers have left, instead of waiting in line at the reception desk. So I did what I was told. Soon after I sat down one of the staff asked me (not in a friendly manner) to leave and let a group of caucasian tourists (who didn't make reservation, as I learned later) to take the seats. I was quite confused at first, so of course I tried to explain myself in English. But this staff, despite having a decent level of English communication skills, did not hear me out and asked me to "step aside immediately" very impatiently. Also, I didn't see the caucasian tourists earlier at the reception desk, nor their names on the waiting list, as I went back for more info about window seats (and again ignored by another impatient staff). I can't think of any other excuses for this sort of behavior, if not being discriminatory. The staff could've cleared up the misunderstanding in a polite manner, yet the situation was handled very poorly and I was too upset to enjoy the nice food and view this amazing aquarium/park had to offer for the rest of the trip.