Hi, my name is*****'m a certified appraiser and I'd be happy to help.
I'd need to see an overall photo, and a close-up of the type in the left and the signature.
Unfortunately, there is no way to determine this artist without doing an image search. The late 19th and early 20th centuries were a time of tremendous mass-production of romantic lithographs, with hundreds or thousands meeting a similar description.
Could this possibly be JL Prevost? Or Jean Bennington?