Enhance Agentforce to Act on Data with Conversational Language -

Hi all, 

 Have followed the process for event summary :  

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 keep getting this error when I try to verify"It looks like the Event Summary Flow element does not have the correct Value field value." I dont understand what I am doing wrong please help :(