Hypnosis is not like getting a flu shot. It can and will vary with the operator, and should be tailored to the individual seeking help. Spend some time speaking with your potential hypnotist and get a feel for them and how they communicate. Ask questions. Gauge their professionalism. If it doesn't feel comfortable like you will be successful, find someone else.
After discussing her issues with smoking and her nervousness about leaving the habit behind, she was able to achieve a nice comfortable trance and responded to all of the suggestions she was given. She has a reinforcement recording to listen to before sleep and should be fine - we'll see in a few days with a follow up call.