Hello, I want to clarify that I'm not a lawyer and cannot provide legal advice. However, according to various online sources, tickets under $500 typically don't necessitate additional evidence, although it's advisable. Additionally, you can submit extra evidence through your online USCIS account. From my understanding, this shouldn't typically cause a delay in your case, but I can't say for certain. Just make sure you bring the receipt to your interview. If you're worried about it, contact an attorney. They can further assist you.