You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am Joseph King, I want to cancel my reservation due to some health condition of my mother.

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait a moment, I will check your reservation status.

USER: Ok, sure.

ASSISTANT: I have found your reservation and cancelled successfully.

USER: Thank you for the help.

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