You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I want to cancel my recent reservation, due to some health issue.

ASSISTANT: Sure, I will assist you with that. May I know your name for further process?

USER: Sure, I am Jacob Hill.

ASSISTANT: Ok, please hold on a moment.

USER: Ok.

ASSISTANT: There is no previous reservation available under your name.

USER: Ok, Thank you.

ASSISTANT: Thank you for reaching us.