Hello.
user
Hello. How can I help you?
assistant
I want to change my existing reservation due to some issues. Can you please help me out?
user
Sure, I will help you to change your reservation.
assistant
Thank you for considering my request.
user
Please mention your name to check your previous reservation.
assistant
Sure, my name is Jacob Moore.
user
Sorry, no reservation found on your name to change your reservation.
assistant
Ok, no problem. Thank you for the information.
user
Welcome, have a nice day.
assistant