You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I have booked the ticket with wrong details. Can you help me in cancelling my reservation?

ASSISTANT: Sure, I will help you with it. May I know your name please?

USER: My name is Michael Rodriguez.

ASSISTANT: Rodriguez, there are no reservations with your details.

USER: I thought I booked the ticket. Anyways, thank you for the information.

ASSISTANT: Welcome.