How more do I communicate to my boss when traveling for work?

So had to travel from east to west coast for a client presentation. On day of travel morning 10 am my boss gave me a set of work and said he wanted it before I boarded. I gave the docs and Informed the manager I was headed to airport. At time of boarding I got another ping if I can talk - I said I was boarding and can chat if urgent. He said he needed few more docs. As soon as I landed sent the additional docs. Manager called and got mad that he couldn’t teach me on phone or slack for 8 hours (not true) as I was traveling. He said our communication was broken.. how do I handle people like this and set some clear boundaries?