If you can't express yourself coherently, you can first write what you want to say on paper, including the so-called rhetoric you mentioned, and then practice it in front of the mirror several times. Familiar language will make you speak more fluently and less nervous on the phone, so as to achieve the desired effect.
Matters needing attention when looking for someone to handle affairs:
1, to determine whether the other party has the ability, you must first determine whether the other party can do it well, and don't force others to do it. If the other party is firm, it is beyond the ability of the other party. On the contrary, if the other person hesitates or tries, there is a great possibility of doing it well.
2. Necessary gifts will get twice the result with half the effort. If you ask for something that will cost the other party a lot of energy and time, or even entrust the other party with a relationship, then you have to pay a certain fee or a suitable gift, so that the other party will not be chilling.
3. Speak as clearly as possible, express your purpose clearly, avoid ambiguity or let the other person understand the mistake, and then be sincere.