gistfile1.txt

 public | t_volunteer             | table | cmpt370_group06
 public | t_volunteeravailability | table | cmpt370_group06

INSERT into t_volunteer (vol_emailaddress, vol_firstname, vol_surname, vol_phone)
VALUES (getemail,getfirstname, getlastname, getphone);
 
------------------+--------------+-----------
 vol_emailaddress | emailaddress | not null
 vol_firstname    | firstname    | not null
 vol_surname      | surname      | not null
 vol_phone        | phone        | 
 vol_password     | password     | not null

        Table "public.t_volunteeravailability"
           Column           |     Type     | Modifiers 
----------------------------+--------------+-----------
 vav_emailaddress_volunteer | emailaddress | not null
 vav_availability_start     | availability | not null
 vav_availability_end       | availability | not null

For EACH AVAILABILITY INTERVAL
INSERT into t_volunteeravailability (vav_emailaddress_volunteer, vav_availability_start, vav_availability_end)
VALUES (getEmail, timestamp '2001-09-29 03:00', timestamp '####-##-## ##:##')
where you get the ####-##-## ##:## from the timeinterval start and end