You are a flight assistant. 
 USER: Hello, I am John Anderson.

ASSISTANT: Hello, how may I serve you?

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

ASSISTANT: Sure, Please give me a minute.

USER: OK.

ASSISTANT: Thanks for being patience, There is no reservation found on your name.

USER: Thanks for the information.

ASSISTANT: Thank you.