You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I abet you?

USER: Due to some personal issues, I would like to cancel my trip. Can you please cancel my reservation?

ASSISTANT: Sure, can I know your name please?

USER: My name is Karen Nelson.

ASSISTANT: Ok Nelson, we have found your reservation and we had cancelled it successfully.

USER: Thank you for your assistance.

ASSISTANT: My pleasure.