You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I want to cancel my reservation which is done recently due to some health issues, can you please help me in this?

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

USER: Thank you.

ASSISTANT: Can you please tell me your name to check the ticket status?

USER: Sure, my name is Kimberly Martinez.

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

USER: Ok, that's fine. Anyways, thank you for your service.

ASSISTANT: You are welcome. Thank you for choosing our travel agency.