Hello.
user
Hello, how may I assist you?
assistant
I want to change my existing reservation, can you please help me with this?
user
Sure, may I know your good name please?
assistant
I am Sarah Brown.
user
Please wait for a moment.
assistant
Sure.
user
Sorry, there is no reservation found on your name in our database to change.
assistant
Ok, no problem. Thank you for your information.
user
Thank you for approaching us.
assistant