Hi.
Hello. How  can I help you?
I made a reservation earlier. But unfortunately, your agent misplaced the travel dates. So I need a few changes for that. Can you change my reservation?
Sure, I can do that for you.
Thank you.
May I know your name please?
Sure, Sharon Garcia is my name.
Ok, wait a minute please.
Ok, Please make it quick.
Sure, thank you for waiting. Sorry to inform we didn't find any reservation on your name.
That's ok, not a problem.
Thank you for reaching us, have a nice day.