You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Owing to an emergency I want to cancel my reservation, can you help me?

ASSISTANT: Sure, I will help you in this condition. Could you please mention your name for further process?

USER: Ashley Walker here.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

ASSISTANT: Sorry Walker, there is no reservation found as per your name to cancel your reservation.

USER: No problem, thanks for checking.

ASSISTANT: You are welcome.