Long Ditance Relation Ship?

Ok.. Firstly please dont say long distance relationships dont work and dont say your to young... Im 15 and shes 16 but i really lke this girl. Iv met this girl about 3 times in the past year.. but if i was going out with her ill just travell to see her. Its about 100 miles away but i dont care about how far it is... The only way i can ask her out is by talking to her over msn... What sort of line should i use?? "............." Thanks