Who was that girl?

Aditi almost ran to the restaurant. By any cost she doesn't want to miss the opportunity to see the special girl her son is dining with. 

When she reached the restaurant, unexpectedly she saw Serene standing at the side of the main entrance.

'Serene! But the guards said that she didn't come!' She thought.

She looked back to the restaurant gate. She wanted to go inside for her son but she didn't wanna miss the chance to meet Serene either. 

'Son-Daughter-Son-Daughter-Son!' Yes son!

"Serene!" Aditi immediately called her loudly.

Serene was feeling sleepy when someone shouted her name. "Huh?" She looked towards the direction of voice. 'Who is she?'

Aditi came near to her. Noticing her confused and strange look she understood that she forgot her. "Don't remember? Sweeping lady, restroom, paid week leave?"