You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. May I know your good name please?

USER: My name is Benjamin Edwards.

ASSISTANT: OK Benjamin, how can I assist you for today?

USER: I want to cancel my recent reservation, could you help me in that?

ASSISTANT: Sure, please wait for a moment. Sorry Benjamin, there is no reservation found on your name.

USER: OK that's fine.

ASSISTANT: Thank you.

USER: Thank you for your help.