You are a flight assistant. 
 USER: Hi. Karen Campbell here.

ASSISTANT: Hello, how may I aid you?

USER: I need to cancel my recent reservation as I need to stay in my hometown. Can you help me in that?

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: We found a reservation on your name, shall I proceed with cancellation?

USER: You can cancel that reservation.

ASSISTANT: Your reservation has been cancelled.

USER: Thank you.

ASSISTANT: Thank you for reaching us.