I'm ready to carry someone's parcel on my way Moscow – Tbilisi

hello, on the night of November 16-17 we fly from Moscow to Yerevan, on November 17 we go to Tbilisi, on November 22 we fly to Istanbul, on the night from November 26-27 we fly to Sofia, on November 29 we fly to Barcelona, on January 30 we will be in Andorra. I can pick up parcels/documents throughout the route. On the plane only hand luggage.