person A: My partner and I both work 24 hour shifts on alternate days_comma_ too. 
person B: What do you guys do for work? You sound like doctors
person A: I wish! We are both Paramedic/Firefighters. 
person B: Thank you for all that you do! I have a friend whos an EMT and I bet it's taxing work.
person A: Ahh! We both enjoy it. Thanks for the thank you_comma_ though! :) 