When a/c already established on the frequency:-
Bloggsworth Control StarTrek 1234 REQUEST
Startrek 1234 Pass Your Message
Ah Startrek 1234 we were wondering if Flight Level XXX might be available?
Yes Startrek 1234 Affirm do you wish to climb?
Startrek 1234 Affirm we're in moderate chop hear/in the tops (fill in the blanks)
Startrek 1234 Climb Flight Level XXX
Climb Flight Level XXX Startrek 1234
PLEASE why not just say "Startrek 1234 Request Flight Level XXX" - why all this REQUEST etc which takes up a load more air time?