You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you now?

USER: I want to cancel my reservation as my sister is unwell, can you please help me?

ASSISTANT: Sure, I will help you. Please share your name with me.

USER: My name is Rebecca Phillips.

ASSISTANT: Sorry Phillips, there is no active reservation on your name.

USER: No problem, thank you very much for checking.

ASSISTANT: My pleasure, have a good day.