Hello.
user
Hello, how can I aid you?
assistant
I want to change my reservation, can you help me with that?
user
Sure, I am here to serve you. May I know your name?
assistant
Marry Campbell here.
user
Sorry to say that, there is no reservation found on your name in our database.
assistant
No problem, thank you for the information.
user
Thank you for choosing us.
assistant