You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, can you please tell me how can I aid you?

USER: Due to an emergency, I want to cancel my reservation. Can you help me?

ASSISTANT: Sure, I am delighted to help you. Please, provide on which name the previous reservation is done to check the existing reservation.

USER: Stephanie Nelson here.

ASSISTANT: Sorry, I have checked in our listing but there is no existing reservation on your name to cancel.

USER: No issue. Thank you.

ASSISTANT: My pleasure, thank you for contacting us. Hope you have a great day ahead.