Show visitor's name ( when registering them ) that have been here in the past so we can choose "autofill" and this way we could see the previous host and all other details. This could speed up the prosses so much and help us find details that people usually do not remember. ( They usually give us random names other than the host and this delays everyone. Also creates confusion.
Some other times we do not get an answer back from the host and it would be nice to ask if the second host that is on the system could help in this case too.