You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Kimberly Hill here.

ASSISTANT: How may I serve you?

USER: I need to cancel my recent reservation due to some issues. Can you help me?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a reservation on your name and it has been cancelled successfully.

USER: Thank you.

ASSISTANT: Thank you for choosing us.