You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: Anna Anderson here.

ASSISTANT: Nice meeting you Anna.

USER: Due to my health issue, I am unable to travel. So, can you cancel my tickets?

ASSISTANT: Sorry Anna, there is no reservation found with your name in our records.

USER: It's fine. I will check with another agency. Anyways, thank you for your help.

ASSISTANT: It's my pleasure to help you.