Hello.
user
Hello. How may I assist you?
assistant
I am Brian Anderson. Due to my health problem I want to change my reservation, can you please help me to change my reservation?
user
Yes, I can help you.
assistant
Thank you.
user
Sorry to inform you that there is no reservation found on your name.
assistant
That's fine. Thank you for your service.
user
Thank you for consulting us.
assistant