Resolve a Double Booking at Brindle Shore Picnic Shelter

You booked Brindle Shore Park’s covered picnic shelter for your parents’ retirement lunch. Park bookings coordinator Nina Bell has discovered that she also confirmed it for a neighbourhood craft exchange. Your lunch delivery cannot change time, and several relatives are arriving by taxi. The craft organisers have already advertised the shelter location. Nina offers your group an uncovered picnic area nearby or a covered shelter across the park. Rain is forecast. She can provide signs and a trolley, but needs your preferred solution by tomorrow before contacting the other group.