You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me to cancel my recent reservation?

ASSISTANT: Sure, I am here to help you. May I know your name?

USER: Sure, I am Paul Clark.

ASSISTANT: I have found your reservation in our database and I successfully cancelled it.

USER: Thank you.

ASSISTANT: Thank you for choosing us.