You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am Margaret Roberts. Owing an emergency, I want to cancel my recent reservation. Can you please help me out?

ASSISTANT: Sure, I will help you to cancel your reservation.

USER: Thank you for accepting my request.

ASSISTANT: Please give me a moment.

USER: Ok, take you time.

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

USER: That's ok, no problem. Anyway thank you for checking.

ASSISTANT: Welcome , have a nice day. Thank you for choosing us.

USER: Welcome.