The Cuban Interests Section in Washington suspended its consular services on Nov. 25 until further notice, and thus it is not issuing visas for travel to Cuba.
Tom Popper, president of tour operator Insight Cuba, said that the December departures of his people-to-people tours will happen "because our travelers already have secured their visas."
"I am hopeful this problem will be resolved soon. I have spoken to the Cuban Interests Section, the Office of Foreign Assets Control and the Department of State. I know that all the powers that be are working together to come up with a solution," Popper said.
The Cuban Interests Section blamed the suspension of consular services on a decision by its bank, M&T Bank. It had advised the Cuban Interests Section on July 12 that it would no longer handle services for foreign embassies, according to a statement.
Since that time, the Cuban Interests Section said it has been trying to find a new bank to service their accounts in the U.S.
"Due to the existing restrictions stemming from the policy of economic, commercial and financial blockade by the North American government against Cuba, it has been impossible for the Interests Section to find until now a U.S. bank or any other bank based in the U.S. willing to take over the bank accounts of Cuban diplomatic missions," the statement said.
The situation will have "negative consequences for family visits and academic, cultural, educational, scientific, sports and other types of exchanges between Cuba and the U.S.," according to the statement.
Follow Gay Nagle Myers on Twitter @gnmtravelweekly.