"Für den Flug einchecken" auf Englisch
Good morning! Welcome to Horizon Air. May I see your passport or ID and your booking reference, please?
Good morning! Here's my passport. My booking reference is HZ4821. I'm on the 10:45 flight to Barcelona, and I'd love a window seat if one's available.
Thank you, Mr. Carter. I can see you're booked on flight HZ204 to Barcelona. I do have a window seat available in row 18 — would you like to check any luggage today?