You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: My name is Margaret Lopez. My business meeting has been cancelled, so I would like to cancel my recent  reservation.

ASSISTANT: Sure, I will help you that.

USER: Ok.

ASSISTANT: Give me a second.

USER: Fine.

ASSISTANT: There is no reservation found on your name.

USER: Thank you for your help.

ASSISTANT: Welcome.