You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I want to cancel my recent reservation due to some issues, can you please help me in that?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: May I know your name please to proceed further?

USER: Sure, myself Margaret Green.

ASSISTANT: Wait for a while please.

USER: Ok, take your time.

ASSISTANT: Margaret Green, we haven't found any reservation under your name in our database.

USER: Ok, no problem. Thank you for checking out.

ASSISTANT: Thank you for approaching us.