I need to book a hotel in...

Meaning

I must reserve accommodations in...

Examples

• John: I'm going to Paris next week.
• Alice: That's exciting! Have you made any plans?
• John: Yes, I've bought my tickets. But, <b>I need to book a hotel in</b> Paris.
• Alice: Great! Make sure you book in advance; they may be fully booked. <b>I need to book a hotel in</b> London next month as well.