It could be Hagley Hybrid (Pink Chiffon is another name for it).

Hagley Hybrid is solid not striped.

Looks like Charissima to me.

Here is a link that might be useful: Charissima

I think it looks more like Charissima than Hagley Hybrid. Thank you very much for the help.

There are more than one that color. I just happen to have Charissima, John Warren is also that color with huge flowers, much bigger than Charissima. Doesn't look like John Warren to me though. I have Hagley Hybrid too.