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
SELECT name ,  phone FROM appointment AS T1 JOIN patient AS T2 ON T1.patient  =  T2.ssn GROUP BY T1.patient HAVING count(*)  >  1
[{'Name': 'John Smith', 'Phone': '555-0256'}, {'Name': 'Grace Ritchie', 'Phone': '555-0512'}, {'Name': 'Dennis Doe', 'Phone': '555-2048'}]