I believe that several components necessary for a successful hypnosis session. Trust is of utmost importance. If you don't trust the hypnotherapist, it won't work. Use your intuition. It's usually correct.
Rapport is equally important.
If you don't have a sense that the hypnotherapist understands you or what you want, it won't work. Desire to change is necessary for long lasting results. If you were persuaded by a friend, relative or significant other to seek out hypnotherapy, in order to make changes for their benefit, it won't work. You need to be the one that wants to quit smoking, for your benefit. Therefore, if you have the desire to quit smoking, hypnosis can be the answer for you.