Can we buy tickets for the dinner cruise the morning we want to cruise?

Yes, we did it the same day. Just do it early so you can have the chance. Enjoy the romantic diner and the beautiful sunset.

Yes, but it might be hard to find a window table but usually there would be some available dinner tickets

Yep

Yes, but I would call them especially if you want a window seat, also If you are entitled to any type discount such as military, AARP, etc.

Yes

Yes right across the street there is the ticket booth.