You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you now?

USER: I want to cancel my reservation, because I am not unable to travel those dates, can you please cancel my reservation?

ASSISTANT: Sure, I will help you with that. May I know your name please?

USER: Thanks, my name is Nancy Carter.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: Oh! It's ok no problem. Thank you for your information.

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