In my spouse's passport the Last Name (Surname) is empty and both the first name and last name are there in the Given Name section of the passport (India). Trying to keep the same format for the name in the Fingerprint card. In the electronic FBI application, it does not let me keep Last Name empty or put a "-" in its place like we did in the IELTS exam. Can someone guide how we should fill the name in the FBI online application, so that it is acceptable for Canadian Immigration?