Hi.
user
Hello. How may I help you at this moment?
assistant
I want to change my existing reservation. Can you help me for that one?
user
Sure, I am glad to help you with that. May I know your good name?
assistant
Sure, Carolyn Hill here.
user
Please wait for a minute.
assistant
Sure.
user
Sorry to say that, there is no reservation found on your name in our database.
assistant
No issues, thank you for the information.
user
Thank you for reaching us.
assistant