You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I would like to cancel my recent reservation, can you please assist me in cancellation?

ASSISTANT: Sure, can you provide me your name please?

USER: Margaret Davis is here.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Margaret Davis. I regret to inform that there is no reservation by your name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.