You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: I want to cancel my reservation, why because my friends already done my reservation with some other airlines. could you please help me out to cancel my reservation?

ASSISTANT: Sure, may I know your good name?

USER: Myself Melissa Martinez.

ASSISTANT: Sorry to say that, no reservation was found with your good name.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for opting us.