You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

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

ASSISTANT: Sure, I am here to help you out.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: Sure, my name is Cynthia Taylor.

ASSISTANT: Wait a moment please.

USER: Ok.

ASSISTANT: Cynthia Taylor, we haven't found any flight under your name in our database.

USER: Ok, no problem. Thank you for your help.

ASSISTANT: Thank you for choosing us.