Vistara Airlines — in flight experience

I was travelling by uk738 from guwahati to delhi on 11 october 2017 and virender sehwag was also travelling in the same flight. As i was in the economy class and sehwag was in the business class i asked almost all the air hostesses in my flight to get me his autograph as this was once in a lifetime opportuniy. Despite me asking them again and again they just told me that he was sleeping everytime. I was thoroughly disappointed as i just wanted the autograph not even a picture still they ignored me and didnt help me. It was the wordt experience as a fan waiting for 2 hours that too in vain. Hope they sont do this to anybody the next time