A：So how long have you know Jack?

B：We go way back.We've known each other since we were toddlers.

A：Really?You guys must be really tight.

B：Yeah , We're buddy-buddy still.

A：He seems sincere,and trustworthy.

B：Well, he is,but he can be conniving at times.

A：What do you mean ?

B：Well, I know that he would never stab me in the back.But I've seen him double cross other people.

A：Oh, my! Really?I never thought he would be like that.

B：Don't get me wrong,I'm not saying he's like that all the time.

A：So,can I trust him or what?

B：Well, I think you should decide for yourself.

A：But I need someone that I can count on for this job.

B：Okay,Okay.You can trust him.I was just trying to give you a hard time .

A：Come on you're confusing me.Give it to me straight.

B：Actually,he's the most dependable person I know,and he would never turn on anyone.