You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I need to cancel my reservation due to some health issues, can you help me?

ASSISTANT: Sure, I am gleeful to help you with that.

USER: Thank you.

ASSISTANT: Can you please tell me your name?

USER: I am George Miller.

ASSISTANT: Here, I found your reservation and it is successfully cancelled.

USER: Thank you.

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