You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: I am Helen Jackson. Due to some health issue, I am unable to travel. So, please cancel my earlier reservation.

ASSISTANT: Sure, give me sometime.

USER: Sure.

ASSISTANT: Thank you for your time. There is no reservation found matching your name.

USER: It's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for being with us.