You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I assist you?

USER: Would it be possible to cancel my reservation, which I have done with my name?

ASSISTANT: Sure, May I know your name?

USER: My name is Melissa Perez.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: Sorry, No reservation found on your name.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for opting us.