How do I open the cabinet above the sink

Hint 1 of 9:

I assume you've been played your VidPhone messages.

Hint 2 of 9:

Have you been to see Karyn at the Bureau of Records at City Hall?

Hint 3 of 9:

Then have you begged her for forgiveness?

Hint 4 of 9:

If that didn't work, look around the alleyway near city hall.

Hint 5 of 9:

Notice a flower shop?

Hint 6 of 9:

Why not buy her some flowers as a present?

Hint 7 of 9:

Give Karyn the flowers and make some excuse about work.

Hint 8 of 9:

Also, make sure to get a date with her before you leave.

Hint 9 of 9:

She'll give you the keys; use them to unlock your cabinet.