Hello.
user
Hello, how could I help you today?
assistant
My name is Deborah Harris. I want to change my existing reservation due to postpone of my client meeting.
user
Please give me a moment, let me check and revert to you.
assistant
Sure.
user
Unfortunately, there is no reservation found with your given name.
assistant
Not an issue, thank you.
user
Thank you for choosing us.
assistant