Teacher:Given a travel related situation, and given a specific question about the situation, summarize the question into a title
Teacher: Now, understand the problem? Solve this instance: Me and my family were planning for a Trip to USA / Canada this year... So all the travel documents including documents required for the USA Visa were collected and uploaded to the website. My brother is handing all this, and we've had to delay the Visa Interview Appointment once in May this year

Now I've been travelling within India a lot this year and have to travel again in July. My dad's not been feeling alright lately, so we've decided to plan this tour for next year or only my brother and his wife will be going, we'll stay back this year.

I'm planning to travel somewhere again within India next month, but the visa interview appointment is making me wait until post-15th July. I asked my brother why this interview cannot be delayed, he said money will be charged if we delay the interview again. Previously also I had requested a delay, and he replied the same thing. And still it was delayed, due to my father's health. I'm trying to convince him to delay the interview until October this year, but he's keen on getting the visa before that.

My question is: If only my brother and his wife are going to the USA, is it necessary for me to apply for a visa too? I'm an Indian resident, and maybe they ask questions like "Whole Family WAS going? Why now only you two are going?" due to which, I'm being told, the visa can be denied.
Also, Can I opt of out this Interview? I don't want the visa this year It'll be raining there in USA until October, after which it'll be snowing I was thinking of writing a opt out email to the embassy, but guess that's not a good idea.

Could anyone suggest of what I could do to avoid wasting my time for an interview which for sure is again going to be delayed. I'm only asking if I can opt out, without interfering with my brother's visa approval.

Student:
Whom to contact for opting out of a Visa Interview for USA?