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

ASSISTANT: Hello, how may I assist you?

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

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Sorry there is no reservation on your name.

USER: No problem, thank you for the information.

ASSISTANT: Thank you so much for choosing us.