You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. May I know your name please?

USER: Myself Cynthia Harris.

ASSISTANT: Cynthia, how can I help you?

USER: For some personal issues I want to cancel my reservation, can you please help me?

ASSISTANT: Sure, I am here to help you. Sorry, there is no reservation found on your name.

USER: It's ok. Thank you for the information.

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