Called up the place on saturday thinking to give it a try since Amy was posted on the shop roster that day, called not long after they posted the shop roster;

yf: hi I'd like to make a booking with Amy please
shop: oh she is busy now
yf: ok, can i make a booking later today?
shop : no she is not working
yf: she is not working? you said she is busy
shop: she is reception
yf: are you amy?
shop: no she is busy now

Well, I decided not to go that day. Hopefully she will be available some other day that she is working