You are in bed because you've eaten something that was off.
You've been ill.
You’ve got a ticket, but your plane has left.
You've missed a flight
You've written a letter from abroad to your friend.
You've sent a postcard.
You’re at the airport, but your travel documents are at home.
You've forgotten your passport / tickets.
You’re visiting another country.
You've gone abroad.
You are in hospital because you've broken your leg.
You've had an accident.
Your luggage hasn’t arrived.
You've lost your suitcase.
Your skin is extremely red.
You've got sunburned
You've discovered a place you didn't know before.
You've explored new places.
You’re paying for things to take home from a holiday.
You've bought souvenirs
You've made new friends during your holidays.
You've met new people.