You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT: Sure, I will help you to cancel your reservation.

USER: Thank you for considering my request.

ASSISTANT: Ok, please mention your name.

USER: Matthew Lee here.

ASSISTANT: Sorry, no reservation found on your name to cancel your reservation.

USER: Ok, no problem. Thank you for checking.

ASSISTANT: Welcome, have a nice day.