You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I want to cancel my recent reservation due to my health issues. Can you help me?

ASSISTANT: Sure, can you share your name please?

USER: I am Steven nelson.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Your reservation is successfully cancelled.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.