You get on the train and have to buy the ticket
Your food is cold
You see a T-shirt you like but want a different colour
There's no space for your carry-on bag in the overhead locker
Your room is too noisy
You have excess luggage
You're on the bus and you don't know where to get off
You want to buy some medicine but can only pay by cash
You can't find the cereal aisle at the supermarket
You need a special breakfast
There's someone in your seat
You can't find the museum
Your glass is dirty
There's no hot water in the shower
You got off from the bus and realized someone stole your wallet
You have a dietary restriction (e.g.: you're lactose intolerant)
The wifi is not working in your room
You can't find the boarding gate
You bought a mug at a gift shop but realize that it's broken
You can only pay for your food by card