You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to cancel my ticket due to an emergency. Can you aid me in cancelling my existing reservation?

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

USER: Thank you.

ASSISTANT: Please mention your name.

USER: It was booked on the name Karen Adams.

ASSISTANT: Ok, please allow me a moment.

USER: Take your time.

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

USER: No issues. Thank you for checking.

ASSISTANT: Welcome, have a nice day.