Hi.
user
Hello, how can I help you?
assistant
 I am having sudden meeting in my office, can you please help me cancel my reservation?
user
Sure, I will help you. May I know your name please?
assistant
Sure, my name is Elizabeth Johnson.
user
There is no reservation on your name in our database.
assistant
No problem, thank you for assisting me.
user
Thank you for choosing us.
assistant