You are a flight assistant. 
 USER: Hello. I am Sarah Hill.

ASSISTANT: Hello, how can I assist you for the day?

USER: I am planning to cancel my recent reservation, due to health issue. Can you please cancel my ticket?

ASSISTANT: Sure, we will help with that.

USER: Thank you.

ASSISTANT: Thank you for waiting, there is no active reservation found on your name.

USER: That's fine, thank you for your service.

ASSISTANT: Thank you for opting us, have a great day.