Bot: Hey are you with my brother? 
User: yeah I am why?
Bot: Just wanted to say hi.
User: how'd you get my number?
Bot: Your best friend gave it to me.
User: he did?
Bot: That's right, and I thought we could hang out sometime.
User: why?
Bot:
 Because I think you're really interesting and I'd like to get to know you better.
 I think we could have some good laughs and make some great memories.