@Anthony--Wei-0
Hi Anthony, your question is a little bit confusing! What did you send the host, an enquiry or a request, they are two different things, and all I can do is tell you what happens with each.
Anthony, an enquiry is just that, it's a question that has a time limit on it. It will come to the hosts message stream and the host is given 24 hours to respond. If the host responds in that 24 hours they need do nothing further. they can simply answer your enquiry without either accepting or declining it. The fact they have responded means they have satisfied the algorithm.
Anthony the host has responded to your enquiry so you are similarly given 24 hours from the time the host sent an answer to your enquiry to proceed, or not. Even if the host has sent you a 'pre-approval' to stay, you are the one who has a choice to either proceed to a booking, ask another question or, move on. If you do not respond to the hosts enquiry reply, after the 24 hours has expired, the enquiry becomes inactive, neither you or the host has to do anything further. The enquiry just drops off the system.
The conversation will remain in the hosts message stream but no further action is required by either you or the host.
If (as a guest) you have sent to the host a 'Reservation Request', which the host is prepared to accept but, in communication with host you learn the request does not fit your requirements and you don't want to proceed, you are required to withdraw that reservation request and you can do that by scrolling down the information panel on the right side of the message stream under the trip request details until you come to the tab marked 'Withdraw request' Once you do that the request becomes inactive and you do not need to do anything further!
I hope this answers your question Anthony, all the best!
Cheers.........Rob