res = []
people = ['xx', 'xx', 'xx']

datedb = {"201905":{"18":"2","19":"1","25":"1","26":"1"},"201906":{"01":"2","02":"2","07":"2","08":"2","09":"1","15":"2","16":"2","22":"1","23":"1","29":"1","30":"1"},"201907":{"06":"2","07":"2","13":"2","14":"2","20":"1","21":"2","27":"1","28":"1"},"201908":{"03":"2","04":"2","10":"2","11":"2","17":"1","18":"1","24":"1","25":"2","31":"1"},"201909":{"01":"1","07":"2","08":"1","13":"2","14":"2","15":"2","21":"2","22":"2","28":"1"},"201910":{"01":"2","02":"2","03":"2","04":"1","05":"1","06":"1","07":"2","13":"1","19":"1","20":"1","26":"1","27":"2"},"201911":{"02":"2","03":"2","09":"2","10":"1","16":"2","17":"2","23":"1","24":"1","30":"1"},"201912":{"01":"1","07":"2","08":"2","14":"2","15":"2","21":"1","22":"1","28":"2","29":"1"}}

for m in datedb:
    for d in datedb[m]:
        date = m + d
        res.append(date)
        print(date)

check = []
out = []
for item in res:
    tmp = {}
    for j in people:
        if len(check) == 3:
            check = []
        if j not in check:
            check.append(j)
            tmp['date'] = item
            tmp['name'] = j
            break
    out.append(tmp)

print (out)