You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I am Sandra Harris. Can you cancel my reservation, which is done earlier?

ASSISTANT: Sure, let me check the status and revert you.

USER: Ok.

ASSISTANT: We found a reservation by your name and it has been cancelled.

USER: Thank you for the help.

ASSISTANT: Thank you for approaching us.