public async Task WhenICalculateNightlyCharge(
string startTime,
string bedtime,
string leaveTime)
{
var startDateTime = startTime.ToLocalDateTime();
var bedDateTime = bedtime.ToLocalDateTime();
var leaveDateTime = leaveTime.ToLowerInvariant().Contains("am")
? leaveTime.ToLocalDateTime().PlusDays(1)
: leaveTime.ToLocalDateTime();
var total = await _fixture.CalculateNightlyCharge(startDateTime, bedDateTime, leaveDateTime);
ScenarioContext.Current.Total(total);
}