Hello.
user
Hello, how may I assist you for the day?
assistant
I am Barbara Hall. Due to health issue, I need to modify the dates of my existing reservation. Can you help me?
user
Sure, I will check the reservation on your name and get back to you.
assistant
Ok, take your time.
user
Sorry, there is no reservation found on your name.
assistant
Ok fine. Thank you for your information.
user
Thank you for availing us.
assistant