Final answer:
The travel agent should advise Mr. White that the National Bank may be closed on Saturday due to Shabbat in Israel, schedule meetings for a weekday, arrange recovery time for jet lag, and consider any additional arrangements if visiting Niagara Falls.
Step-by-step explanation:
For Mr. White's business trip to Tel Aviv, the travel agent should consider several factors. Firstly, the travel agent should inform Mr. White that the National Bank may not operate on Saturday as it is Shabbat (Sabbath) in Israel, a day when many businesses, including banks, are closed. Therefore, conducting business on Saturday may not be possible. It would be advisable to schedule his business meeting for a weekday instead. Additionally, the travel agent should ensure Mr. White is aware of the time zone differences and jet lag considerations, and arrange flight bookings to allow for his recovery time on Friday. If Mr. White is considering visiting Niagara Falls on his return, the agent should account for any additional travel time or arrangements this side trip may require.
If Mr. White extends his stay, he should communicate his plans to those he is doing business with, and rearrange his travel and accommodation accordingly. The travel agent might also want to provide Mr. White with information on travel insurance, local customs, and currency exchange. Weather advisories and appropriate attire recommendations for both Tel Aviv and Niagara Falls can be a valuable addition to the travel planning.