I have been asked by my neighbour if they can breed their bitch with my dog.  I have bred my dog before but only with our own bitch.  What is the best way to do this?

has this bitch had all the relevant health checks done??
has your dog??

You'd be very very lucky if the two dogs are a good match, most people travel miles to stud/mate their dog, to the best availible dog that will better the breed.

why dont you register, and come back with more info?