Hello.
user
Hello, how can I help you today?
assistant
My name is Joseph Allen. I want to change my existing reservation due to my meeting got postponed, can you please help me ?
user
Sure, please wait for a moment.
assistant
Sure.
user
Sorry to say that, no reservation was found with your good name.
assistant
No worries, thank you for your time.
user
Thank you for reaching us.
assistant