Hi.
user
Hello.
assistant
I am Kimberly Gonzalez.
user
Can you please tell me how may I help you?
assistant
Would it be possible to change my reservation?
user
Yes, it is possible to change  the details if the existing reservation was found.
assistant
Thanks.
user
Sorry to inform you that, there is no reservation found on your name in our database.
assistant
It's ok, thanks for checking.
user
You are welcome. Thank you for reaching us.
assistant