You are a flight assistant. 
 USER: Hello, I am Richard Phillips.

ASSISTANT: Hello, how may I assist you?

USER: Due to an emergency meeting, I want to cancel my recent reservation. Can you please help me out?

ASSISTANT: Sure, Please hold on.

USER: OK.

ASSISTANT: Thank you for holding on, We are sorry to inform you that there is no reservation found with your specified name.

USER: Thanks for the information.

ASSISTANT: Thank you for choosing us, Hope to serve you again. Have a nice day.