(Reuters) - Vacation rental company Airbnb ( ABNB ) forecast third-quarter revenue below Wall Street estimates on Tuesday and reported a lower second-quarter profit, as it flagged weakening demand from U.S. customers.

Shares of the company were down about 12% after the bell.

Domestic travel in the United States has been pressured since the start of the year as more Americans grow cautious about travel spending amid growing economic uncertainty.

The San Francisco-based company reported quarterly profit of $555 million, or 86 cents per share, compared to $650 million, or 98 cents per share last year.

It expects third-quarter revenue to be between $3.67 billion and $3.73 billion, below analysts' estimate of $3.84 billion, according to LSEG data.

Airbnb ( ABNB ) also expects moderating growth in nights booked in the third quarter and said it was experiencing shorter booking lead times globally.

Booking lead time is an important metric in the travel industry and refers to the number of days between the reservation date and actual arrival. A shorter booking window can indicate consumers are booking travel at the last minute, due to increased uncertainty and caution in spending.

Travel reservations provider Booking also said earlier this month that lead times had shrunk in the second quarter and were expected to shrink further in the third.

Airbnb's ( ABNB ) average daily rate, or cost per night, grew about 2%, to $169.53 in the reported quarter. The vacation rental expects ADR to grow modestly in the third quarter.

Net income margin, or the profit the company made for every dollar of revenue generated, decreased to 20% in the second quarter, compared to 26% a year ago.

Nights and experiences booked numbered 125.1 million, up 9% from last year. Globally, nights and experiences booked in Latin America and Asia-Pacific saw the highest growth, jumping by 17% and 19%, respectively.

The company reported a gross bookings value of $21.2 billion, up 11% from a year ago.

Total revenue for the quarter ended June 30 was $2.75 billion, up 11% from a year earlier.