Seems they knew who they were talking to if they sent someone like this. Even with Rakka's bad feelings meant towards the corporation, a little reservation could go a long ways, if they really wanted the Haibane onboard.

"Uhh, yes. That sounds like a good idea." A better idea then being pressured into it right now. "That will probably give me... enough time to think about it."

Don't expect many phone calls, is what she means.