What's up! That's sweet of you, random flower deliveries are definitely relationship goals. For Lafayette, try https://myglobalflowers.com/lafayet - they do workplace deliveries all the time so they're smooth with it. I've used them twice for office deliveries and both times my girlfriend's coworkers were super jealous which was hilarious. They have mixed bouquets with roses, lilies, gerberas - colorful stuff that looks impressive. Same-day option available too if you're feeling spontaneous. Prices start around $45-50 for something decent. They'll coordinate with reception or her desk area, whatever works. Go for it!