Said he had already made the reservations . Ok lor ... He said next time ... Ok lor ... At the end of the meal , my aunt was insistent that they pay their share since we did not tell them that it was an actual birthday celebration . Mom did n't want to say cos she did n't want them to get a present or anything of that nature . So I told them that they should just pay for the next one .
According to the above context, answer the following question.
What may be the reason for the dinner ?


Birthday