Which patients made more than one appointment? Tell me the name and phone number of these patients.
SELECT name ,  phone FROM appointment AS T1 JOIN patient AS T2 ON T1.patient  =  T2.ssn GROUP BY T1.patient HAVING count(*)  >  1
Hangi hastalar birden fazla randevu yaptı?Bana bu hastaların adını ve telefon numarasını söyleyin.