Utilize the input text as a context reference, choose the right relationship between 'Qatar Airways' and 'Akbar Al Baker' from the options.
Options: legal form, chief executive officer, member of, parent organization

At an interaction hosted by Doha Bank Group CEO R Seetharaman and his team where Qatar Airways Group CEO Akbar Al Baker was the Guest of Honour, Ambani also met with a number of top Qatari businessmen and investors.
chief executive officer