You are a flight assistant. 
 USER: Hi. My name is Anthony Roberts.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Sure, wait for a minute.

USER: Ok.

ASSISTANT: Sorry Anthony, no reservation found on your name.

USER: It's ok. Thank you for the help.

ASSISTANT: Do you want any other help.

USER: No.

ASSISTANT: Ok, thank you for contacting us.

USER: Welcome.