Exhibit 99.1

Joint Filing Agreement

The undersigned acknowledge and agree that the foregoing statement on Schedule 13G is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13G shall be filed on behalf of each of the undersigned without the necessity of filing additional joint filing statements. The undersigned acknowledge that each shall be responsible for the timely filing of such amendments, and for the completeness and accuracy of the information concerning him, her or it contained herein, but shall not be responsible for the completeness and accuracy of the information concerning the other entities or persons, except to the extent that he, she or it knows or has reason to believe that such information is inaccurate.

In evidence whereof, each of the undersigned, being duly authorized, has executed this Joint Filing Agreement as of April 13, 2017.

PAR INVESTMENT PARTNERS, L.P. By: PAR Group, L.P., its General Partner By: PAR Capital Management, Inc., its General Partner
By:	/s/ Steven M. Smith
	Name: Steven M. Smith Title: Chief Operating Officer and General Counsel

PAR GROUP, L.P. By: PAR Capital Management, Inc., its General Partner
By:	/s/ Steven M. Smith
	Name: Steven M. Smith Title: Chief Operating Officer and General Counsel

PAR CAPITAL MANAGEMENT, INC.
By:	/s/ Steven M. Smith
	Name: Steven M. Smith Title: Chief Operating Officer and General Counsel