You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you today?

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

ASSISTANT: Surely, I will help you out.

USER: Thank you.

ASSISTANT: To check the reservation list, we need your name.

USER: My name is Gary Thomas.

ASSISTANT: Ok, please allow me a few minutes.

USER: Sure, take your own time.

ASSISTANT: Thank you for waiting, I have checked the reservation list but no reservation was found on your name to cancel.

USER: No problem, thank you for checking.

ASSISTANT: Thank you for choosing us.