You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Margaret Harris here. By mistakenly I was made a wrong reservation, earlier in this week. So I want to cancel my reservation. Can you please help me for that?

ASSISTANT: Sure, just a moment please.

USER: Ok.

ASSISTANT: Thank you for being patience.

USER: My pleasure.

ASSISTANT: I am sorry to say, no reservation found on your name.

USER: Anyway, thank you for the information.

ASSISTANT: Do you any other dates to travel?

USER: Nothing.

ASSISTANT: Thank you for choosing us. Have a great day.

USER: Have a great day.