Hello, Mark Campbell here.
user
Hello, how can I help you at this moment?
assistant
As my meeting got postponed at Dallas, can you please help me by changing my existing reservation?
user
Sure, I will help you with this.
assistant
Thank you.
user
Mark Campbell, there is no active reservation found under your name in our database.
assistant
Ok, not an issue. Thank you for providing information.
user
Thank you for contacting us.
assistant