Hello.
user
Hello. How can I help you today?
assistant
I want to change my existing reservation due to health issues, can you please help me with that?
user
Sure, I am here to help you with that, can I know your good name to proceed further?
assistant
My name is Melissa King.
user
Sorry to inform you that there is no active reservation on your given name.
assistant
No problem, thank you.
user
Thank you for reaching us.
assistant