"Name's Imm. Imm Possible."
"That seems...unlikely."
"You just haven't tried."
"Um. Okay. Spelling?"
"I. Two M's. Last name Possible."
"Two M's?"
"One's silent."
"Oh."
"You're fine. It's a common mistake."
"And you are here for—?"
"Doing what you think can't be done."
"...hrm."
"You're welcome. In advance."