You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you? May I know your name please?

USER: I'm Jacob Lopez. By mistake, I have booked some flight. Please kindly you cancel my flight.

ASSISTANT: Sure Jacob Lopez, please wait for a second.

USER: OK sure.

ASSISTANT: Sorry, I cannot find any flights with your details.

USER: It's Ok. Thank you for your support.

ASSISTANT: Thank you, have a nice day!.