Is each person allowed to choose more than just one person to see again?

Yes, you can choose as many or as few people to see again.
With each date being only three (or five) minutes, what if after I meet somebody I'm still not sure whether to mark this person as "yes" or a "no"?
I noticed that your web site said that if you do not have a match at one event you can go to another one for free. Is this true?
What should I wear to a speed dating event?
What is the procedure once everyone arrives at the Club/Restaurant?
Is anything provided at the speed dating event?
Is each person allowed to choose more than just one person to see again?
How long does it usually take to hear who you matched with?
Does everyone get an email match or no match?
How do I get the most out of the speed dating experience?
Do you have any speed dating tips for me?