As the traveler, it is your responsibility to check if you need a passport and visa for the destination you are visiting. Sometimes, even countries that you are only passing through require a transit visa (e.g. for stopovers). You should check this with the relevant embassy or consulate. Please note that some countries require that your passport is valid for six months beyond your stay.
If you have purchased our visa service at the time of booking, we will help you to apply for a visa, as noted in your confirmation email.