had a nice time
I/we had a nice time
An expression typically said to an event's host when one is leaving. Thank you! We had a very nice time! I had a nice time, Teresa. See you tomorrow.
(I) had a nice time.and (I) had a good time.
the standard good-bye and thank you said to a host or hostess by a departing guest. John: Thank you. I had a nice time. Sally: Don't stay away so long next time. Bye. Mary: Had a nice time. Bye. Got to run. Sue: Bye. Drive safely.