You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to cancel my recent reservation, due to some health issue. Can you help me?

ASSISTANT: Sure, I can help you.

USER: Thank you.

ASSISTANT: Can I know your name please?

USER: Yes, I am Rebecca Anderson here.

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

USER: Thank you for your valuable help.

ASSISTANT: Do you want any other help from us?

USER: No, thank you.

ASSISTANT: My pleasure.