Sure. So I think, listen, on the air side of things, it's really a tale of two cities. On one side, we've got some very strategic partners that not unlike our global lodging partners, over the last couple of years have really started to work with us on a much more constructive basis, recognizing the value that we bring, the value that they bring and all of the different areas that we can work together to add more value. Honestly, that is probably where the majority of our U.S. carriers are, including the big ones, the competitors of United. And to give you a sense of the breadth of places where we are working together, if you look at the traditional distribution business, the ticketing business, that has evolved significantly over the course of the last five years. Not only are we significantly larger than we've ever been, we've got huge audiences in the hundreds of millions of visitors and customers that we can showcase brands to and showcase products to, but increasingly it's become a very cost-efficient channel as consumer credit card fraud has become an issue, as automation and customer service has become an issue. And if you look at our major carriers, in many cases, we are driving billions and billions and billions and billions of dollars of revenue for them at the same time as doing it with lower fraud cast -- in fact, on fraud protection, we're covering that for our partners. For customer service, we're covering that for our partners. And that can add up to tens, if not more than that, millions of dollars per carrier. We also have great partners like American Airlines where we're working on ways to actually help them reduce their customer service costs. And again, this is just kind of the beginning of things. We're also working with, again, American Airlines on thinking about ways where we can be creative around upselling from economy or basic economy up into higher fare classes. But if you look across Expedia Group, there is more. We've got -- our strategic partners are using our advertising platform to target specific customers, to showcase the unique differentiators that each of our carriers bring to bear. Air Canada has done some really incredible things on this front in conjunction with our MeSo or Media Solutions team. Our Expedia Partner Solutions business drives the hotel portion of many, if not most of the major carriers' dot com websites, including providing them with packaging technology. That's been a really area of value creation. And our Egencia business, fourth largest corporate travel business in the world, has got preferred relationships with the likes of Delta, who's doing some super creative things around status matching, targeting meetings, business and being part of a preferred program. The other new thing I would say is that over the last year or so as we transitioned really into more of a platform company, we found new ways to use our real time review data to help our airline partners understand how they compare with their peers on customer service items, things like check-in experience, in-flight experience, in-flight entertainment, all of these things and enable our partners to drill down literally to the root level and understand how they're performing versus their peers. We've also started working with partners to help provide them with some of our forward-looking demand data for revenue management. And I think, honestly, we're just getting started. So I think when you look at all of that and you think about what our more sophisticated players are doing in the airline space, I just think there's tons of opportunity for us to create value with United with all of our other carriers. I think we're about five months out from contract expiration. We've always been very excited about having this type of discussion with United. But listen, at the end of the day, this is a platform. It has market level economics. And to the extent that United, for whatever reason, decides to go a different direction, no one of our carriers represents more than 1% of our revenue. We've got very strong relationships with our real lead carriers in the U.S. Our customers shop at Expedia because they're largely carrier-agnostic and certainly we have a lot of experience with what happens when we have certain outages or not. But when I look at the value that can be created by expanding the pie as opposed to focusing on dividing it, I think for both strategic and economic reasons, I would find it completely bewildering if United decided to not engage in that discussion. But at the end of the day, they've got to make their choice and we will just move on. And I think United's competitors would be very happy with the outcome, but I think it would be value-disruptive to both of us, and that's not a place where we particularly want to end up. And I suspect that they really, in their heart of hearts, probably don't want to end up there either.