I'm going to tell someone that they can rent my house and then change my mind and tell them no.
Why would you do something that cruel?
I'm not confident that renting out my house is the right decision.
If you make a deal about renting out your house you should abide by it. It's wrong to deceive people. If you aren't confident in your decision, then you should take time to think it over before trying to rent out your house.
You're right. I'll think it over more.
I think that's a good decision! There's nothing wrong with taking more time before making an important decision like what to do with your home. You will be glad that you're being thorough!