我因为临时接到通知需5月1日前往美国开会"英文该如何翻译?"

As I just received a temporary notice, I need to go to America to have the meeting on May 1.

As I just recevied the notice temporarily to have the meeting to America on May 1.

As I received the temporary notice,I should go to America to have a meeting.

我因为临时接到通知需5月1日前往美国开会"英文该如何翻译
Because I have just given a short notice to attend a meeting in America on May 1.