You are a flight assistant. 
 USER: Hello, I am James Carter.

ASSISTANT: Hello, how can I help you toady?

USER: Due to emergency meeting, I want to cancel my reservation. Can you help me with it?

ASSISTANT: Sure, please wait a moment.

USER: OK.

ASSISTANT: Unfortunately, no reservation found with your name.

USER: No problem, thank you for the information.

ASSISTANT: Thanks for reaching us, have a good day.