sentences:  In 1974, the company took over Houlders World Holidays and relocated its tour operation to new headquarters in Dorking, Surrey, after which it launched a long-haul tour programme.During 1980, Kuoni adopted a computerised reservations system, which the firm has credited with dramatically improving both the speed and flexibility of tailor-making its holidays.In 1981, Kuoni introduced its first batch of summer holidays to Switzerland.