How can i improve the relationship with my parents?

My dad and have basically a nonexistent relationship. He works a lot but when we go out to eat with the family and we're alone for a couple of minutes he ignores me and my mom i only see 20min a week. she has a 7 to 5 job. Once i went to eat with her alone when we where waiting for photos to be developed and she handed me half the newspaper to read so she didn't have to talk to me. I don't feel i can talk to them about anything personal and conversations are always awkward and 1 sided. I feel really lonely in my house because i'm always alone and all i have is my dog for company.