You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I have planned to go for OAK, but now I am not interested travelling.Can you please help me to cancel my ticket?

ASSISTANT: Sure, please provide me your name to check the details.

USER: Myself Benjamin Collins.

ASSISTANT: Benjamin, I found your reservation. Shall I cancel it?

USER: Ok, you can cancel.

ASSISTANT: Your reservation is cancelled successfully.

USER: Ok, fine thank you.

ASSISTANT: Thank you for reaching us.