Jay Baer, in Nashville for a conference, is a digital marketing consultant who travels half the year and relies on Pana for tips on places he visits and to rebook when his schedule changes, writes The New York Times.

Jay Baer, a digital marketing consultant in Bloomington, Ind., spends half his time traveling on business. That means he also has to spend hours each week coordinating that travel. Help has arrived with the Pana app, which employs artificial intelligence to aid customers. Virtual travel assistant services — some from established companies like Facebook, IBM and Expedia, and others from new entrants like Pana and HelloGbye — are now popping up worldwide, just as major hotel chains like Starwood and Hilton are incorporating robots into their everyday operations.

Many of the virtual assistant services use artificial intelligence, a branch of computer science that simulates intelligent human behavior. Some respond to questions posed by travelers, either in live speech or digitally, while some, like Pana, rely on additional input by humans to provide answers.

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• ‘Where’s my robot?’