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Given a travel related situation, and given a specific question about the situation, summarize the question into a title

My passport is swiss and I am living at Vancouver (with a student Visa valid until 2018) and I have a valid ESTA (until July 2016). Around July 15, I'll be crossing the border (between Vancouver and Seattle) to hitchhike in the USA along the west coast for about 2 weeks or 1 month.

At the moment I'll pass the border, I won't be able to indicate where I'll spend my first night. I won't be able to accurately say how much time I'll spend in the USA. Is it an issue?

Output:
Entering USA as a tourist without any plan