We are happy to notify you about the new release of the Hotel Booking plugin 4.2.0 where the guest may register an account while making a reservation and view his/her bookings. Thank you for your upvotes and patience.
On the above reply I’ve notified all the participants that this feature has been already released since 4.2.0 version. Now you may allow guests to register accounts during reservations. You may learn more reading this post https://motopress.com/blog/customer-accounts-hotel-booking-4-2-0/