You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how best can I serve you?

USER: I want to cancel my recent reservation, As my meeting with my chairman has been cancelled. Can you help me with that?

ASSISTANT: Sure, may I know your name?

USER: I am Dorothy Anderson.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: Ok, not an issue.

ASSISTANT: Thank you for opting us.

USER: Thanks for the help.