I will be Jaen next monday and stay in Youth hotel(Albergue Inturjoven & Spa Jaén). Two days later I will go back Madrid by train. The departure time of the train is 06:10, so I hope to take a taxi to the train station. Could you tell me if it is easier to take a taxi in the early morning in Jaen? Do I have to call taxi company to make a booking in advance? Thank you.