Here are my 2 favorite Jadzia-Kira scenes from the season 2 episode "The Seige".
Jadzia: Have I mentioned how allergic Trills are to insect bites?
Kira: Really?
Jadzia: Well, the biochemical connections between host and symbiont can't tolerate the... oh! Whoa! What's that? Is that a spider or a dog?
Kira: Palukoo. The Bajoran moons are full of them.
Jadzia: Oh, I suppose you used to make them your pets and, uh, sing songs about them around the campfire.
Kira: No. We used to eat them. There it is.
*Kira and Jadzia approaching the aircraft/shuttle/ship whatever.*
Jadzia: Are you sure this thing is supposed to fly?
Kira: Oh, I've been in alot worse.
*After Kira opens the aircraft/shuttle/ship whatever.*
Jadzia: I guess the Bajoran resistance must've had a lot of short pilots.
Kira: Ha, no, just short engineers. They were alway building these things without thinking.
Jadzia: Encouraging.
Kira: Just bend your knees. You'll fit. Now the real trick will be to fire up these thrusters after all this time. It was hard enough to get them going when they were being used everyday.
Jadzia: We'll get them fired up. You don't have to worry about that.
Kira: Oh, you're sure, huh?
Jadzia: Yep. I have no intention of getting stuck here eating palukoos.
couple of scenes later...
Kira: You got it!
*Jadzia coughing*
Jadzia: Don't turn the engines off. We'll never get them started again.
Kira: Let's go.
Jadzia: Thank you, Tobin.
Kira: Dax, come on.
Jadzia: Oh, the hell with it. If it's gonna fly, it's gonna fly.
Kira: Problem?
Jadzia: No, everything's wonderful. OW!
Kira: The knees. Oh, listen to that sound. That sure brings back some memories.
Jadzia: How did you ever win a war in these things?
Kira: We were the insects, Lieutenant. The Cardassians were just as allergic as Trills. Is the proximity system working?
*Jadzia thumps it*
Jadzia: I think so.
Kira: All right, let's see if we can get out of here without bouncing off any walls.