You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, do you need any help from us?

USER: Can you please help me to cancel my recent reservation due to my heath issues?

ASSISTANT: Sure, could I have your name please?

USER: I am Katherine Nelson.

ASSISTANT: Sorry, there is no reservation with your name to cancel further.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: You are welcome.