Band 8.5 sample answer
This happened two summers ago, when I flew from Chengdu to Madrid to start a short Spanish course. I'd been studying Spanish for about two years by then, mostly from textbooks and online lessons, so in theory I was ready, but I'd never actually had to rely on it.
When I landed at Barajas, everyone around me collected their bags and left, and mine simply never appeared. It was late at night, I was exhausted after nearly twenty hours of travelling, and the lost luggage desk had one tired employee and a long queue of equally unhappy passengers.
My first instinct was to switch to English, but the woman at the desk clearly preferred Spanish, and I thought: this is exactly what all those evenings of grammar were for. So I took a breath and explained, slowly, that my suitcase hadn't arrived, which flight I'd been on, and what the bag looked like. The hard part wasn't the grammar, it was the vocabulary I'd never needed in class, words like the handle, the address of a temporary residence, and the fact that I needed my medication, which was in the bag. At one point I had to describe the colour as something between grey and green, and we both ended up laughing.
To my surprise, it worked. She filled in the form, gave me a reference number, and the bag was delivered to my host family two days later.
Afterwards I felt a slightly ridiculous level of pride. It wasn't a sophisticated conversation, but it was the first time Spanish stopped being a school subject and became a tool that actually solved something for me. It also showed me, quite brutally, which gaps I needed to fill.