The 'History' tab within the Guest Profile contains valuable information about all past reservations a guest has had at your restaurant. You are able to see the following:
Where your Guest Initiated their Booking
Any Changes made after the Initial Booking
Who Initiated the Change ( whether it was in-house or done by the guest)
Above, we see all reservations the guest has at Burton Bistro. Tapping 'View' will show you more information about the source of the reservation and any changes that have been made to the reservation, seen below.
Quick tip: Curious about the source of a reservation, just remember ResyOS = in-house booking, Resy= resy.com, Resy widget= the booking widget on your website.