PLEASE HELP Single entry Visa with an annotation

[pallavilangde]

Hi.. I have got a single entry visa to united states for 2 months with an annotation stating to attend an exhibition in New York. The exhibition is on 27th and 28th of September but i want to travel to USA 20 days prior to the expo as i want to visit my sister in Charlotte North Carolina. Though i had mentioned about my relative in the application form, the consulate didnt ask me anything regarding my relatives in USA and granted me a visa of 2 months single visit just for the purpose of attending the expo. In this case what is better, to take a flight directly to Charlotte or should I fly to New york as in this case my destination matches with what is mentioned in my annotation? Also I would like to know if travelling 20 days prior to expo would be fine ??
How should i answer the CBP they question me .

PLEASE HELP URGENTLY AS I NEED TO BOOK TICKETS

[peace999]

I think you will have to plan with the annotation in mind.

Land at New York , about 4-5 days before the Expo.
and plan the visit to your relatives after the expo.
The reason is the CBP officers at arrivals, reading the annotation, can ask you about the dates of the expo
and proof .

They will ask you the purpose of visit and duration.
Your answer should be ; attending the expo and later some sight seeing for 1-2 weeks.
They usually give a month's stay anyway.