Hello.
user
Hello, how can I assist you?
assistant
I want to change my existing reservation, as my health is not good to travel. Can you please help me with this?
user
Yes I am here to help you, can you please mention your name?
assistant
Sure, I am David Martinez.
user
David, you have no reservation to change.
assistant
Ok, no problem. Thank you for your information.
user
Thank you for availing our services.
assistant