Please apologise, this sounds like I'm bragging. I'm not, but because it sounds like it is, I've not really asked this question in real-life.
I've been asked to fly to the UN as an expert for a one day meeting. They're paying, great. My boss is happy with me to go, it looks great on my CV and our department. But I'm not an expert, ok I know some stuff, but not an expert, and I've seen the tickets they've bought me. They're not cheap
I'm feeling like a fraud, even though I know I can't really say no because it's such a great opportunity. AIBU to feel so guilty? How do I cope with the guilt when I go? This world of jetting around is very new to me