搭乗 とうじょう手続 てつずきカウンターだったら
tōjōtetsu zuki kauntādattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of 搭乗手続きカウンター

1. If/when it's the check-in counter; If/when it were the check-in counter

Tara Conditional