2
1 call start
1 return
1 call addFlight xid "347" 100 310
1 return true
1 call commit xid
1 return true
1 call start
1 return
2 call start
2 return
2 call addFlight xid "347" 100 620
2 return true
2 call commit xid
2 return true
1 call queryFlight xid "347"
1 return 200
1 call queryFlightPrice xid "347"
1 return 620
1 exit
