Step not yet complete in Data Cloud and Einstein AI It looks like the Event Summary Flow element does not have the correct Value field value.

I am stuck at this section: 

1. Click the Event Summary element, then click Edit Element.
2. For Value, copy and paste the following: 
   Check-in date of {!Reservation_1.Check_in_Date_c__c}, check-out date of {!Reservation_1.Check_out_Date_c__c}, for room type {!Reservation_1.Room_type_c__c}.

3. Click outside the Value box so the Save button becomes available, then click Save.
4. Click Activate.
5. Close the Flow tab to return to the Setup tab.

I have attached a screenshot of my configuration. Did I follow the right instruction? Appreciate some guidance here. Thank you