when people dont know their homes worth

[Jack Rengold]

when people call me and ask me to make an offer i ask what they think their house is worth and that i do not make blind offers.  i tell them that i will do my research and in the mean time ask them to find out what their house is worth.

when i call them back they say they still dont know but they want an offer.  do i make an offer? should i tell them to do their own research? what do i do