Hi.
user
Hello, how may I help you today?
assistant
I want to change my reservation due to health problem, can you help me?
user
Sure, I am here to help you with this. May I know your name please?
assistant
Myself Margaret Turner.
user
Please wait for a moment.
assistant
Sure.
user
Sorry Turner, there is no reservation found as per your name to change your reservation.
assistant
No problem, thanks for checking.
user
You are welcome always.
assistant