You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

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

ASSISTANT: Sure, I am here to help you with your concern.

USER: Thank you.

ASSISTANT: Can I have your name please to check your reservation status?

USER: My name is James Carter.

ASSISTANT: Please hold on a moment.

USER: Sure, I will wait for your response.

ASSISTANT: James Carter, no reservation has been found on your name in our database.

USER: No problem, thank you for checking.

ASSISTANT: Thank you for choosing us.