You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I serve you today?

USER: I need to cancel my reservation, can you help me out?

ASSISTANT: Can I know your name please?

USER: Myself Joseph Green.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: We found a reservation with your given name and it has been cancelled successfully.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.