You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: Myself Benjamin Wilson. Due to some business conference meeting, I am going to cancel my reservation. Can you please help me for this?

ASSISTANT: Sure, I will help you in cancelling the ticket.

USER: Thank you.

ASSISTANT: Sorry, there are no reservations found.

USER: Not a big problem, anyway thank you very much for you kind service.

ASSISTANT: Thank you for reaching us.