The ability for two married individuals who are not husband and wife to book a hotel room together can vary depending on local laws, cultural norms, and hotel policies. In many places, hotels generally don't inquire about the marital status of their guests, and as long as both individuals are of legal age, they are allowed to book a room together.
However, in some conservative or religious regions, local laws or hotel policies may require proof of marriage or may not permit unmarried couples to share a room. It's essential to research the specific laws and hotel policies of the location you plan to stay in to ensure compliance and avoid any potential issues.
It's worth noting that societal attitudes towards cohabitation have evolved over time, and in many places, it's becoming more accepted for unmarried couples to stay together in hotels without any legal complications.
To be safe, it's best to call the hotel you plan to stay at and ask about their specific policies regarding unmarried couples. If the hotel allows it, there should be no issue in booking a room together. If not, you may need to consider alternative arrangements or find a hotel that is more accommodating to your situation.