I've had a lovely time

I've had a lovely time.

 and We've had a lovely time.
a polite expression said to a host or hostess on departure. Bob: I've had a lovely time. Thanks for asking me. Fred: We're just delighted you could come. Good night. Bob: Good night. Sue: We've had a lovely time. Good night. Bill: Next time don't stay away so long. Good night.
See also: lovely, time