AMPScript ProperCase & Trim

%%[
VAR @fName, @FN_Trim, @FN_PC

Set @fName = [First Name]
If not empty(@fname) then
(
  Set @FN_Trim = Trim(@fName)
  Set @FN_PC = ProperCase(@FN_Trim)
)
]%%
%%=v(@FN_PC)=%%, Get First Class Service at Our NBAA Booth

%%[Else]%%

Get First Class Service at Our NBAA Booth

%%[EndIf]%%

%%[
Set @fName = [First Name]
If not empty(@fname) then
]%%

%%=ProperCase(Trim([First Name]))=%%, Get First Class Service at Our NBAA Booth

%%[Else]%%

Get First Class Service at Our NBAA Booth

%%[EndIf]%%

%%[
Set @fName
If not empty(@fname) then
]%%

%%=ProperCase(Trim(@fName))=%%, Get First Class Service at Our NBAA Booth

%%[Else]%%

Get First Class Service at Our NBAA Booth

%%[EndIf]%%