You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

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

ASSISTANT: I am here to help you, may I know your name to check your reservation?

USER: I am Justin Scott.

ASSISTANT: Ok, please hold on a moment.

USER: Ok.

ASSISTANT: Thanks for your time, there is no reservation found on your name to cancel it.

USER: That's ok, thank you.

ASSISTANT: Thank you for choosing us.