Hello.
user
Hello, how can I help you today?
assistant
I want to change my existing reservation, can you please help me with this?
user
Sure, may I know your name?
assistant
Kevin Nelson here.
user
Please wait a moment.
assistant
Sure.
user
Sorry to inform, no reservation found with your name.
assistant
No problem, thanks for your information.
user
Thanks for reaching us.
assistant