French phrase
Un aller simple ~, s'il vous plaît.
Meaning
A one-way ticket to ___, please.
When to use it
A polite request for a one-way ticket. Used at a ticket counter when stating the destination.
Example dialogue
Un aller simple pour Paris, s'il vous plaît.
A one-way ticket to Paris, please.
Pour quelle date ?
What date would you like?