You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to cancel my recent reservation due to bad health issues. Can you help me out?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your name please to check the status of your reservation?

USER: I am Nancy Nelson.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Nancy Nelson, I have found your reservation and I cancelled it successfully.

USER: Ok, thank you for your response.

ASSISTANT: Thank you for choosing us.