inline entity form multi value and panels add node form problem

hello, for a while I try to work with the module form multiple inline entity value for non ecommerce project, I created a content type 1 which contains multiple form fields inline entity value (fill in another content type "Book ").
The second content type "Book contains two fields: start date and end date).

Then I used panels to create a new add varying form, the problem is that the fields booking inline entity form "does not show the dates the beginning and end date fields, I do not know how to solve this problem