Hello.
user
Hello, how can I assist you today?
assistant
I am Barbara Perez, want to alter my existing reservation due to some personal issue. Please help me out with that.
user
Sure, please wait for a moment.
assistant
Ok.
user
Sorry, there was no reservation found with your given name.
assistant
It's ok, thank you for your help.
user
Thank you for opting us.
assistant