Hello. I am Mary Wilson.
user
Hello. How can I assist you today?
assistant
I am planning to change my existing reservation, due to health issue. Can you please change my ticket?
user
Sure, please allow me a moment to check for the previous reservation.
assistant
Sure.
user
Mary, there is no reservation found under your name.
assistant
That's fine. Thank you for your service.
user
Thank you for reaching us.
assistant