Your best bet is to get your own attorney. Otherwise you should contact the other attorney and see if they will consent and stipulate to an adjournment. Then the court must be advised of the request.
Why do you want the adjournment? Generally you need the consent of the other side and to prepare a stipulation. If the other side thinks you are just stalling they won't consent. You can also try writing to the Judge being sure to copy the other side too.
I am a former federal and State prosecutor and now handle criminal defense and personal injury/civil rights cases. Feel free to check out my web site and contact me at (212) 385-8015 or via email at Eric@RothsteinLawNY.com. The above answer is for informational purposes only and not meant as legal advice.