You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I need to cancel my recent reservation due to some bad  health conditions.

ASSISTANT: Sure, I am here to help you.

USER: Can you help me?

ASSISTANT: May I know your name?

USER: I am Christine Johnson.

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

USER: Yes, please cancel it.

ASSISTANT: Your cancellation has been confirmed on name of  Christine Johnson. Thank you for approaching us.

USER: Thank you for helping me.