You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Stephanie Allen. Would it be possible to cancel my recent reservation, which I have done previously.

ASSISTANT: Sure, I am here to help you. Please wait for a moment to check your details.

USER: Sure, take your own time.

ASSISTANT: Sorry to say, no reservation found on your name.

USER: It's ok, thanks for your information.

ASSISTANT: Thank you for reaching us.