Calendar help

I’m looking for a plugin for a calendar. I’ve already tried Appointy and WP-Calendar(and the associated widget).

I have a client who travels a lot. His clients need to see what cities he’ll be in. I need a calendar that can sit in the sidebar (or have its own page) to show blocked off days of the month when the good doctor will be travelling.

If the doctor’s client clicks on one of those days, they’ll be able to see what city he’s in and for how long.

Any help you can give me here is GREATLY appreciated!

Thanks in advance!
Rachel