You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I want to cancel my reservation which is done recently due to some problems, can you please help me?

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

USER: Thank you for considering my request.

ASSISTANT: Ok, may I know your name?

USER: Sure, my name is Ryan Adams.

ASSISTANT: Please give me a moment.

USER: Sure.

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

USER: Ok, that's fine. Thank you for your service.

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