You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Larry Lewis.

ASSISTANT: How may I help you out?

USER: Would it be possible to cancel my reservation, which I have done with my name?

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

USER: Thank you.

ASSISTANT: Sorry, there are no reservations found.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for reaching us.