Couple of questions about yellow letter responses

[Brian Stone]

Hi guys, hope you are all doing well,

I have a couple questions about the yellow letters I have been sending out. When people call me, how do I respond to:

"Make me an offer!"

"Can you come out at so and so o clock to look at the house (when in reality i have to work these hours)"

Also, what if someone asks me something about like, options, or subject tos or something unfamiliar to me, and i dont know how to answer? do i ballpark it, or just come out and say i dont know?

Thanks everyone