You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT: Sure, I am happy to help you with the ticket cancellation process.

USER: Thank you.

ASSISTANT: Could you please let me know your name to check the ticket status?

USER: Myself Anna Lopez.

ASSISTANT: Ok, please give me a minute.

USER: Ok.

ASSISTANT: Sorry to inform you, there is no active reservation found with your name to cancel the ticket.

USER: Not an issue. Thank you.

ASSISTANT: You are most welcome. Thank you for choosing us.