They have hinted about it before, and American Express Global Business Travel officials this week reinforced the company's desire to own an online booking tool. The big question is, in what sense?

"We will have our own solution," said chief sales officer Christine Ourmières-Widener during an interview Tuesday. She said the company fully expects to continue supporting a variety of tools, but "having our own solution moving forward is important."

Undetermined is whether the company will build or buy a product. Partnering also is on the table, but . . .

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