Hello.
user
Hello, how can I help you today?
assistant
Can you help me with that change my existing reservation?
user
Sure, I am glad to help you. Can I know your name to check with existing reservation?
assistant
Sure, I am Benjamin Wilson.
user
Sorry, there is no reservation found with your name in our database.
assistant
Ok, not an issue. Thank you for your information.
user
Thank you for choosing us.
assistant