a guy was tired of waiting for a girl in hotel he went her house and wrote with 15 matchstick and left her house HOTEL

girl understood what he has to say and she replied him by removing 1 matchstick out of it what was the reply

Maybe the following. The last letter, L, is made of two matchsticks, one vertical and one horizontal. Removing the horizontal one leaves the "word":

H O T E l ("hottie")