You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I have to cancel my reservation due to my planned event got cancelled. So please help me with that.

ASSISTANT: Sure, I will help you in cancelling the reservations. May I know your name please?

USER: Thank you. Myself Dorothy Rodriguez.

ASSISTANT: Sorry, there are no reservations found.

USER: Ok, not a problem. Thank you for your help.

ASSISTANT: Thank you for reaching us.

USER: Welcome.