You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. What kind of service you are looking for?

USER: I want to cancel my recent reservation. Due to some health issue. Can you help me?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: May I know your name, to check your reservation status?

USER: I am Michelle Hill.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for waiting. Sorry Michael Hill, there is no active reservation on your name to cancel it.

USER: Ok, no problem.

ASSISTANT: Thanks for opting us, Visit again!.

USER: Thank you for your information.