Travel Authorization stuck "Submission in Process" - how to delete or cancel?

User Submitted Travel Authorization (TA) for Approval. The TA is stuck in TRAVEL_AUTH_STATUS = SFA (Submission in Process). The user wants this TA to be deleted or canceled. How can I get this to a status where that is possible?

I checked ps_ex_tauth_aw for the TA. It returns zero rows. The EX_LINE_STATUS for all the lines is PND (Pending). The travel_auth_id is not found in ps_kk_source_hdr. That means it has not been budget checked.

I looked at the search record (ps_ex_tde2_srch_vw) for Travel and Expenses > Travel Authorization > Delete. It allows a TA to be deleted if it's ps_ex_tauth_hdr.travel_auth_status = PND and it has not been budget checked.