how to connect router mAP to a hotel's guest service

Hello,

I have not been able to find a way to connect my little mAP router to a hotel’s guest service , in other words I want to make it a bridge AP but in the hotel I require a username and password .

The hotel does not have an Ethernet port and and the WiFi uses a splash screen for authentication , the service is not free and the fees are per device so imagine paying for all of them .

The goal is that I join my Mikrotik mAP to the guest and then I use it to provide Internet to my devices.

Is this possible?

Any help and comment is appreciated.

Thanks