You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you? Can you please tell me your good name?

USER: I am William Evans, I want to cancel reservation.

ASSISTANT: Ok, please give me moment, to check you details on your name.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found. Thank you for reaching us.

USER: It's ok, thank you for helping me.