I have worked with a number of people that have been cabin crew and moved on to be a pilot (male and female). I think the only problem will be how you put this across at the interview. It will raise questions even for airlines employing cabin crew on seasonal contracts...'what happens if a job offer came up during your contract?'
As for you working as cabin crew, as long as you demonstrate you have the enthusiasm and qualities to work the other side of the cabin door you could be offered a position. Good Luck