Hello.
user
Hello. How can I assist you?
assistant
I want change my existing reservation, due to some health issue. Can you please help me?
user
Sure, I will help you to change your reservation.
assistant
Thank you.
user
Give me a moment. May I know your name?
assistant
Myself Dorothy Rodriguez.
user
Sorry, there is no reservation is found in our data base to change your existing reservation.
assistant
No problem, thank you for checking.
user
Welcome.
assistant