Hi.
user
Hello,. How can I amend you today?
assistant
I am Donald Walker. Would you please change my existing reservation? Because I need to attend to other personal work.
user
Sure, we are here to aid you.
assistant
Thank you.
user
Please, wait for a while.
assistant
Sure.
user
Thanks for waiting, there is no reservation found on your name in our database.
assistant
Ok, Thank you.
user
Thank you for reaching us.
assistant