Could you please suggest me the scenario for this requirement ?

In module booking process we need the following process

1.Student select their interested event package via website.

2.Advisor review the student's event package list.

2.1 In case of REJECT : student need to revise their list

2.2 In case of APPROVE : all event package have confirm and run fee calculation.

The information above is shortly requirement , if any one have suggestion for this requirement please suggest me.