A possible answer --->

Interviewer: Sell me this pen!
Me: Sure sir. (Lifts the pen)(Drawing out my own Parker and addressing to it) Hello sir! I would like to know - Do you have any children?
Interviewer: Yea, I have a daughter!
Me: Does she go to school yet? What grade is she in?
Interviewer: She's 12 yrs old! She is studying in 7th grade now.
Me: I'm sure soon she must be having exams this season. How does she fare in her exams?
Interviewer: She does really good! She is always amongst the top 3 in her class!
Me: Sir, here I have this Parker!
Just before the exam - I suggest you hold her hands, tell her how great she is gonna do and gift her this pen! It would really give her much needed inspiration to get to the top this time.
Interviewer: How much is it worth?
Me: I'll give you one for 250 bucks.
Interviewer: 250 is way too much, I can only spare a 50.
Me: Then, sir, I think you could try this one(Lifting the pen he gave), <sparing only 50 bucks>, Even with a best of luck hug, you would still need a pen!
And I think this one is good enough. After all, does a daughter really care if her father gifted her a Parker, or just a simple pen with that hearty best of luck!

;)