I want use case description and Activity$$diagram for login to hotels and airports booking app $($ wego application$)$ like this form

$2\mathrm{.}1$ Detailed System Analysis

$2\mathrm{.}1\mathrm{.}1$ Use case description

Use Case Name:

Login

$2\mathrm{.}1\mathrm{.}1$ Activity Diagram

Login