Hello, Sandra Lee here.
user
Hello, do you need any help from us?
assistant
I want to change my reservation, can you help me?
user
Sure, please wait for a while.
assistant
Ok, please check my booking status.
user
Lee, there is no reservation with your name to change.
assistant
Oh! That's fine, thank you for checking anyways.
user
That's ok, thank you for the information.
assistant
Most welcome.
user