Hello, I am Melissa Martinez.
user
Hello, how can I be at your service today?
assistant
Due to an emergency meeting, I want to change my reservation. Can you help me with it?
user
Sure, let me go through our data base to find your reservation.
assistant
OK.
user
I am sorry but we don't have any reservation on your name.
assistant
No problem, thank you for the information.
user
Thank you.
assistant