You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Sure, can I know your name?

USER: My name is Larry Green.

ASSISTANT: Please hold on a moment.

USER: Sure.

ASSISTANT: We found your reservation. Shall I cancel it?

USER: Yes, please.

ASSISTANT: Your ticket has been cancelled.

USER: Thank you.

ASSISTANT: Thank you for reaching us.