Tell me the party email of the party with id 1?
select party_email from parties where party_id = "1"
Tell me the party phone of the party id 2 ?
select party_phone from parties where party_id = "2"
Tell me the service id of the customer id 10 ?
select service_id from party_services where customer_id = "10"
Which is the email of the party that has used the services the most number of times ?
select t1.party_email from parties as t1 join party_services as t2 on t1.party_id = t2.customer_id group by t1.party_email order by count ( * ) desc limit 1