You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

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

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

USER: Thank you.

ASSISTANT: Please mention your name.

USER: Sure, my name is Kenneth Adams.

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

USER: Oh! I think it might be cancelled by my brother. Anyway, thank you for checking.

ASSISTANT: Welcome, have a nice day.

USER: Welcome.