It depends on the type of lift, but you should consider rescheduling!

For breast implants, smoking may not be as much of an issue.  The bigger issue is the lift.  If it is a significant lift (repositioning the nipple), you are at risk for wound healing problems and losing the nipple!  NOT WORTH IT!  If it is a more minor lift, it likely won't be a big issue, but smoking may still worsen the appearance of the scars and make waking up after surgery rougher (more likely to cough, maybe higher risk of pneumonia).  This is elective surgery and you want it to go as smoothly as possible, so rescheduling is the smartest thing to do!  Good luck!