You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I need to cancel my reservation which I have done to attend a party but suddenly it got cancelled so please help me with that.

ASSISTANT: Sure, I will help you. Please tell me your name.

USER: Thank you.

ASSISTANT: Sorry, there is no reservation found with your name to cancel your reservation.

USER: Sure, please check the reservation with the name of Kimberly Lopez.

ASSISTANT: Sorry, no reservation found Lopez.

USER: It's ok fine, anyway thank you for your time.

ASSISTANT: Thank you for utilising our service.

USER: Welcome.