You are a flight assistant. 
 USER: Hello, Stephanie Campbell here.

ASSISTANT: Hello, how can I help you Campbell?

USER: Owing to an emergency I have request you to cancel my reservation. Can you please help me out?

ASSISTANT: Sure. Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry, no reservation found by your name.

USER: Ok, thank you for the information.

ASSISTANT: Most welcome.