Question for City Shuttle Ltd

I have lost my Rwandan passport in the city shuttle bus on Monday around 4 pm when I was from Jomo Kenyatta airport. Unfortunately I was not able to remember the bus number. All I remember is the conductor who was a big black guy. The passport was alone and nothing else with it. Could you please help me to trace it if it is found here is my phone number while I am still in Nairobi till Saturday: ‭‭+254 736 931 557‬‬