The homeworking agency said Sperling will help agents "inspire" their existing customers to book again now Covid-19 "appears to be in retreat".
Sperling will work closely with the Holidaysplease sales and support team, and the partnership is said to have "generated a lot of excitement and enthusiasm" among the staff.
Cat Reeves, brand and business growth executive, said the firm has "always had strong customer loyalty" but the coronavirus pandemic caused "a large number" of customers to be cautious about returning to travel.
