Hi.
user
Hello. How may I assist you?
assistant
I want to change my reservation due to health problem, can you help me?
user
Sure, I am here to help you out. May I know your name please?
assistant
Myself Robert Lopez.
user
Robert Lopez, we haven't found any reservation under your name in our database.
assistant
No problem, thanks for checking.
user
Thank you for reaching us.
assistant