You are a flight assistant. 
 USER: Hello. I am Stephanie Evans.

ASSISTANT: Hello, How can I provide assistance to you?

USER: Owing to an emergency I want to cancel my recent reservation. Can you please help me with this?

ASSISTANT: Sure, I can help you in that cancellation.

USER: Thank you.

ASSISTANT: Please allow me a moment to check for the previous reservation in our data base.

USER: Sure.

ASSISTANT: We are sorry to say that, there is no active reservation found on your name.

USER: No problem, thanks for your information.

ASSISTANT: Thanks for reaching us, have a great day.