You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I want to cancel my recent reservation. Could you help me with that?

ASSISTANT: Sure, will you mention your name please?

USER: Dennis Scott.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: Your reservation is successfully cancelled.

USER: Thank you.

ASSISTANT: Welcome, have a great day.