So I've noticed lately that on dating apps I use, I'll use funny pick up lines, they will laugh or get flattered and then when I ask for number I don't get responses. Example of okcupid convo I had yesterday.

Me- are you a sea lion cuz I sea you lion on my bed later Her- omg this is the best thing I've ever read, I'll definitely be lion on your bed soon Me- phone number?

No response.

This happens all the time, is there something wrong with the approach? Should I have a bit of convo before asking for the number, tell a few more lines than ask for number, I don't understand pls help