LONDON — TravelPerk, a European corporate travel booking platform, told CNBC on Tuesday it has acquired Chicago-based startup AmTrav to help further its expansion in the U.S.AmTrav, which operates in the same space as TravelPerk, will continue to operate under the same brand and its entire team will continue with the business.To help fund the deal and TravelPerk's broader expansion efforts, the company also raised $135 million in debt financing from private equity firms Blackstone and Blue Owl.Avi Meir, Tra ...