You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How can I serve you?

USER: Could you help me in cancelling my reservation as my boarding meeting got cancelled due to sudden demise of our CEO?

ASSISTANT: Sure, May I know your name?

USER: I am Donna Carter.

ASSISTANT: Please wait a second.

USER: Sure.

ASSISTANT: Sorry, No reservation found on your name.

USER: Ok, no issues. Thank you for prompt response.

ASSISTANT: Thank you availing us.