Behavior driven test suite consist of one or more Scenarios. Each scenario represents one test case. One can provide optional related information as background or narrative or user-story related to scenarios authored in the suite.
Formation of Suite
[Narrative | Background | User-story] Scenario: <name of the scenario> <<steps>> End ... Scenario: <name of the scenario> <<steps>> End
Tip: To start with you can use available pre-defined low level steps and author scenario.