Hello.
user
Hello. How can I help you today?
assistant
I am Alexander Hernandez. I want to change my existing reservation, due to some health issue. Can you please help me with that?
user
Sure, I will help you to change your reservation.
assistant
Thank you.
user
Please allow me a moment.
assistant
Ok, I will wait for your information.
user
Sorry, no reservation found on your name to change your reservation.
assistant
That's ok, no problem. Anyway thank you for your information.
user
Welcome, have a nice day.
assistant