Hello.
user
Hello, how may I help you?
assistant
I want to change my existing reservation. Can you please help me with this?
user
Sure, I am here to help you with that. Can I know your name?
assistant
Sure, my name is Jessica Harris.
user
Please wait for a moment to check your details.
assistant
Sure.
user
Sorry, no reservation found on your name in my database.
assistant
Ok, not an issue. Thank you for checking.
user
Thank you for reaching us, have a nice day.
assistant