Selling Memberships at Box Office

Hello

We'd like to start marketing and selling Friends memberships via our Box Office staff.

To avoid asking the same customers repeatedly if they want to join the Friends I wondered if there was a way we could use Tessi to track and flag who has been asked and when. This could potentially be a custom screen for Box Office similar to a data protection 'last asked' screen.

Does anyone have a method of tracking membership asks which works for them?

Lizzy