Hi.
user
Hello, how can I assist you?
assistant
Due to an emergence, I want to change my existing reservation. Can you help me it?
user
Sure. To check for your existing reservation, can I have your name?
assistant
My name is Helen Young.
user
There is no reservation found with your name.
assistant
Ok, no issues.
user
Thank you for choosing our service.
assistant
Thanks for the help.
user